ANESTHESIA AND ANESTHETICS, BY J. W. TRADER, SEDALIA, MO, REPRINTED FROM THE TRANSACTIONS OF THE MEDICAL ASSOCI- ATION OF THE STATE OF MISSOURI FOR 1875. ANESTHESIA AND ANESTHETICS. BY J. W. TRADER, M. D., SEDALIA, MO. \_Reprinted from the Transactions of the Medical Asso- ciation of the State of Missouri for 187 5. The power of producing insensibility by general or local an- aesthesia is of comparatively recent origin. Although the ancients were possessed of a knowledge of certain medicines that would re- lieve, to some extent, the pains of surgery or surgical wounds, they evidently were not acquainted with anaesthetic agents as ap- plied at the present day. In the times of Achilles, and during the Trojan war, much praise was bestowed upon a reputed son of Aesculapius for the manner in which he so successfully relieved, by his applications, the wounds of the enemy's darts. When Ma- chaon fell in the conflict with Paris, the stern Achilles expressed a deep solicitude in the welfare of the wounded hero, and exhorts the valiant Nestor, to whose care he is entrusted, to use his best exertions in his behalf; "for a leech like him, who knows how to cut out darts and relieve the smarting of wounds by soothing un- guents, is to armies more in value than many other heroes." (In- troduction to Miller's Principles of Surgery.) After the days of Machaon, the profession seemed to abandon everything like sooth- ing applications in the practice of Surgery, and so painful were some of their operations, that the Surgeon was looked upon as an enemy, instead of a benefactor to mankind. Hippocrates recom- mended that "when medicine fails, recourse should be had to the knife, and when the knife was unsuccessful, to fire." Sometimes he applied red-hot iron to the part affected. Sometimes he raised a conflagration on it, and of it, by a piece of wood dipped in boil- 2 ing oil." (Ibid.). Praxagoras of Cos, the last of the school of Asclepiades who succeeded in leaving a name behind him, is said to have been bold in the extreme, making incisions into the bow- els to remove obstructions, when milder means would fail. Erasis- tratus who flourished in the Alexandrian period, and practiced his profession under the auspices of Ptolemy Soter, is reputed to have been more heroic still. In scirrhosities and tumors of the liver, he did not scruple to make an ample division of the integuments, and try applications to that viscus itself. He followed the same practice in diseases of the spleen, which he regarded as of little consequence in the animal economy. (Ibid.) When the political flood swept over Europe, and transferred the seat of empire to Rome, under Julius Caesar, the abhorrence in which practitioners of surgery were held, caused an edict to be issued forbidding them to practice in the Republic, and calling on the people to depend upon "traditionary prescriptions and relig- ious rites," and to trust for restoration to health in the less pain- ful operation of incantations and spells. For six hundred years the Roman Empire had no regular practitioner of surgery. After the expiration of this period Archagathus, a Greek, from the Al- exandrian school, established himself in Rome. So deep, how- ever, was the prejudice of the people excited against the tortures of the profession, that Archagathus, after changing his original title from "healer of wounds" to that of executioner, was banished from the Roman capital. The antipathy against the regular pro- fession became so great, that any system which would offer a re- lief from the pain and torture of the doctors, would be recom- mended and received with pleasure. Charlatanism and ignorance, supported by some of the best minds of Rome, now made rapid strides, and the followers of the mythical Circe, hurried on by such an impetus, not only made dangerous inroads but absolutely reign- ed without a rival. Philosophy and the sciences began to wane. Egypt, Greece and Rome who in their turn had done so much to advance the arts and learning, and had given to the world Ma- chaon, Hippocrates, Praxagoras, Celsus and Galen, now refused to allow their profession practiced or taught. The deep Cimmer- ian gloom that overspread the world of letters, threatened forever to obscure the science of surgery and envelop it in a cloud of ig- norance and superstition. For nearly one thousand years were the voices silent that should bring it to light. The classic shores of Italy and Greece had now withdrawn the protecting shadows of 3 the cross, and when the warlike followers of Mahomet, and the fiery descendants of Ishmael, promised protection in the Empire of the Crescent, the barbarous practices still clinging to our pro- fession, they too strangled it by royal edicts. It was not until the middle of the 18th century that the maxim "Dolor Medicina dol- oris" was taken away, and the lifeless form of Surgery resurrected from the remains of barbarism by the immortal Pott. A more humane and rational plan was now adopted. The practices of barbarism were set aside. Notwithstanding the great improve- ments of Pott, and afterwards of Hunter, it remained for the 19th century, and our own country to give to the world a perfect free- dom from pain, during surgical procedures, by the administration of an ansesthetic. The first attempt to introduce an anaesthetic to the attention of the medical profession was made by Mr. Horace Wells, of Connecticut, in bringing forward the nitrous oxide gas ; but his first attempts were unsuccessful, and were finally superceded by the discovery of etherization. In the latter part of the last century, Drs. Beddoes, Pearson and Thornton, of England, following, perhaps, the example of Hippocrates and some Arab physicians, who used certain remedies by inhalation, in lung diseases, tried the vapor of ether for a like purpose, but without producing anaesthesia. As early as 1805, Dr. Warren, of Boston, used the inhalation to relieve the dis- tress attending the last stages of pulmonary inflammation. In October, 1846, attention was first drawn to ether inhalations as an anaesthetic, and it was used in a dental operation by Dr. Mor- ton, of Boston, upon the suggestion, as is alleged, of Dr. Jackson. "From this beginning the employment of ether by inhalation, for the prevention and removal of pain, has spread throughout the civilized world." In the year 1831, Mr. Guthrie, of Sackett's Harbor, N. Y., ob- tained by distillation an article which he called chloric ether (but to which Mr. Dumas, of France, in a later communication, gave the name of chloroform,) that has, so far, outstripped all its pro- totypes. About the same time, Mr. Soubeiran, of France, and Liebig, of Germany, made a like discovery. Later still, Dr. Simpson, of Edinburg, by personal experiments, tested its practi- cal utility. The following table gives all the leading aneesthetics that have been experimented with, viz.: Nitrous Oxide, Ethylic Ether, Tetra Chloride of Carbon Chlorethylidine, Methylic Ether, Bichloride of Methylene, Bichloride of Ethylene, Bromide of Ethyl, Methyl-ethyl-ether, Chloroform, Methylal, Amylene, And we might add Chloral Hydrate. That these agents will all produce anaesthesia more or less perfect, cannot be doubted, but their behavior has not been sat- 4 isfactory with the exception of a few, which we will now proceed to notice. Since the attention of the profession has been so earnestly directed to the investigation of anaesthesia, and the probability of finding out some more safe and reliable agent than chloroform, much has been said about sulphuric ether. It is claimed that it is free, or nearly sb, from danger, and quite as reliable and effi- cient as chloroform. In support of these assertions the names and experience of many leading men in the profession are brought forward. J. E. Petrequin, of the Hotel Dieu, Lyons, remarks that " complete anaesthesia can be produced by it with certainty and safety/'-[Boston Medical Journal, Oct. 1867, page 190.] Dr. Jackson, of Boston, who, as before stated, is supposed to have been the originator of the idea of anaesthesia by ether vapor, recognized that insensibility could be obtained in a very short time, but that it disappeared rapidly. The assertion of M. Perrin, in his Traite d'Ancesthesie Chirurgicale, that Dr. Jack- son considered anaesthesia from ether inhalation as being free from danger, is doubted by leading medical men in this country.- [Hay's Journal, Jan. 1867.] The Boston Medical Society, as well as Xhe Medical Society of Lyons, decided that the inhalation of ether vapor is absolutely free from danger. In referring to said decision, M. Giraldes, in the Dictionnaire de Medicine, decides that the Boston and Lyons Societies advanced a proposition much exaggerated, and that if the critical examination given to chloroform had been accorded to ether, "we should have arrived at a diminution of the number of mortal accidents which cast a shadow over its history. To say that ether is unaccompanied with danger, after all due care has been taken, is to assume partisan grounds. Upon investigation it will appear that this claim cannot be allowed." In Dr. Sansom's work on chloroform, nineteen cases of death from ether are referred to, as reported in the of Trous- seau. Dr. Saborth, in his Das Chloroform, says " thirty-six cases of death from ether are known to have been collected, so that in proportion to the frequency of the administration of chloroform, and the much less frequent use of ether, the number is a very large one."-[Hay's Journal, Jan., 1867, page 183.] The tabular statements given by the various authors upon this subject will only be approximately correct from the lack of suffici- ent reliable data It is not at all likely that every death is re- ported from any one of the agents used. Occasionally you will see a case of death from the use of some anaesthetic, wandering through the medical journals of the day, which, never enters into the general summary or finds a permanent place in medical litera- ture. Dr. E. Andrews, of Chicago, who has taken a great deal of pains in tabulating cases, both in this country and Europe, has very kindly furnished me the result of his labor. These tables in- clude surgical cases only, and give the following rate of mortality 5 appended to each article; as follows : Sul. Ether, i death to 23,204 administrations. Chloroform, 1 death to 2,723 adminis- trations. Mixed Chloroform and Ether, 1 death to 5,588 admin- istrations. Bichloride of Methylene, 1 death to 700 administra- tions. Nitrous oxide, no death in 75,000 administrations. Since the publication of Dr. Andrew's tables, one case of death from Nitrous oxide inhalation has certainly been reported, and no doubt others have occurred. According to the above showing, we will have a mortality from chloroform eight and a half times greater than ether. In re- gard to mixture of chloroform and ether, Dr. Andrews gives the following table of anaesthesias by mixture of chloroform and ether with accompanying deaths, viz. : Chicago statistics, 1 death to 350 administrations. U. S. A. circular No. 6, no deaths to 2,326 administrations. Guy's Hospital, London, 1 death to 8,500 ad- ministrations; making the mixture twice as safe as chloroform and four times more dangerous than ether. Dr. Sansom estimates that "'one case in seventeen thousand only have proved fatal from its use." His work, together with the Report of the Committee of the Royal Medical and Chirurgical Society of London, in 1864, may be said to contain the best re- sults of English investigation up to this date. This appears to be a small rate of mortality, although nearer the truth, in all proba- bility, than the strictures upon said work by Dr. Andrews, also of London, who, from the statistics he had been able to obtain, states that of eighty-three thousand and fifty-nine (83,059) cases in which chloroform was administered, twenty four proved fatal, or one in three thousand, four hundred and sixty-one. (St. Louis Medical and Surgical Journal, Dec. 1867.) In taking into account the number of fatal cases from the in- halation of chloroform, it must be allowed that many accidents occur from the careless and reckless manner in which it is adminis- tered ; other cases there are, where a constitutional incompatibility exists, in which it would not be just to attribute the death to chlo- roform. As may be shown by tabular statements, out of one hun- dred and thirty three cases of death from chloroform, only forty- nine could be said to have resulted exclusively from this agent; of these forty-nine cases, sixteen were attributed to shock, while thirty-three were "cases in which every precaution seems to have been observed, and no explanation of death can be given in the present state of our knowledge." Of the remaining eighty-four cases, thirty-three were "cases in which the report is so imperfect that a judgment cannot be formed as to the manner of death, or the share chloroform had in producing itthree were cases in which severe operations were performed, and in which, therefore, chloroform had but a share in producing the result; eleven were cases of death during administration to patients laboring under delirium tremens, or who were hard drinkers ; nine were from the shock produced by the surgical procedure. By the above state- ment it is shown that the great majority, or near two thirds of the 6 deaths attributed to chloroform, were complicated with certain conditions of the system that would seem to contraindicate its use. These statistics, purporting to give the relative deaths from chlo- roform, are often prepared by strong partisan advocates, and while some few cases, that have proved fatal, may have been over- looked, the majority of those collected may properly be said to have had their origin, in whole or in part, to some anterior or ulterior agent. Some go so far as to rest their statement upon very uncertain foundations, including among the list of fatal cases those who had died several days after the administration of chlo- roform. "One of those," says Dr. Reeves, whom I shall have oc- casion to quote in several instances throughout this article, "writ- ing in favor of ether, in an American Journal, makes the state- ment that a French author had ascertained that there had been about two hundred deaths from chloroform as long ago as 1859, a number which increases to several hundred before his brief ar- ticle closes." The best statistical record we have, in all probability, is that of Dr. Snow, who up to 1858, had collected only fifty fatal cases. The report of Lallemand, Perrin and Duroy, in the Traite d' An- aesthesie Chirurgicale, dated 1862, contains seventy-seven cases. The Royal Medico-Chirurgical Society in 1864, report one hun- dred and nine; Saborth's Work, "Das Chloroform," dated Wurz- burg, July 1865, has a list of one hundred and nineteen. Mr. Sansom in his hand-book on chloroform, has recorded one hun- dred and seven, and it is a remarkable fact that the preponderance of fatal cases are those for trivial operations. The following is a list of the deaths : For minor operations, extraction of teeth, &c., 62. For operations of moderate severity, as removal of breast, 26. For capital operations, 7. For reductions of disloca- tions, 6. For delirium tremens and mania, 4. For natural la- bor, 2. Mental shock, if the term is admissible, no doubt operated as an important factor in many of those fatal cases. We know that this condition does some times exist. The case of Desault, is certainly a very remarkable one, in which he traced with his fin • ger nail the line of incision in the perineum of a patient bound up for the operation of lithotomy, and the man shrieked and died. The case of Sir Jas. Y. Simpson furnishes another example, and probably of more value, because chloroform was to have been ad- ministered for the first time, but owing to some delay in the prep- aration of the anaesthetic, the operation was undertaken without it, the patient dying after the first incision. Hence it is justly re- marked by Dr. Sansom, "It is reasonable to suppose that fright or apprehension may have had some share in causing the mortality among those who have succumbed before the symptoms of anaesthe- sia have been induced-that chloroform may have been but one (and that perhaps the least) among the influences." Dr. Richard- son, in his Medical history of England, has placed the number of deaths from inhalation of chloroform as one to seventeen thousand, 7 as quoted by Dr. Sansom. Others claim a less per cent even than this ; as low as one death in twenty and twenty-three thousand inhalations. "Yet all these calculations differ much and assist us but little.'' Some persons have enjoyed complete immunity from accident, who have dealt with this agent for years, as in the case of Velpeau and Syme ; "and the instance of the French army in the Crimea with 30,000 administrations and no death, is remark- able.'' * In regard to the mode of action of anaesthetics upon the sys- tem, we cannot positively be assured. The evidence furnished by our best experimenters and observers is often unreliable and in some cases contradictory. There is no doubt but that all these agents are capable of acting in two ways, as we shall try to show as we proceed. It is not always possible for us to know whether the carbonization of the blood invariably takes place antecedent to anaesthesia or whether anaesthesia may not be produced by di- rect action on the brain through the nervous system, independ- ent of blood contamination. However, in all the experiments and observations reported where the condition of the brain under chloroform or ether could be seen, its vessels were filled with black blood. (A. J. Med. Sci., 1868, page 92.) Dr. Sansom, in a pa- per read before the British Medical Association, August, 1868, denies that anaesthetics have a direct action on the central ganglia of sensation and says,-"on the contrary, they presented in their action a complete similarity with the phenomena of deprivation of oxygen. Tracing the action of the typical anaesthetics, the author showed that they acted both as a cardiac and vaso motor stimulant ; they contracted the systemic arteries, producing a con- dition of insufficient supply of arterial blood, cutting off the capil- lary supply and expressing the great volume of blood towards the venous channels and distending the right side of the heart, as witnessed in post mortems. The author concluded that anaesthe- tics produce these phenomena by inducing a suppression of oxida- tion in the body, 1st,directly,by acting on the blood, 2d,indirect- ly, by modifying the forces by which the blood is circulated, and that they have no special action on the sensorial ganglia.'' (A. J. Med. Sci. 1868, page 545-6.) In the same year (1868) Dr. San- som read a paper before the Obstetrical society of London in which he insists that the action of chloroform and the other anaesthetics is primarily upon the nerves of sensation and not those of motion. (A. J. M. S. 1869, page 490.) Dr. Richardson, in a communication to the Physiological sec- tion of the British Medical Association, August 1870, says, with regard to the action of the various anaesthetics upon the system, that the chemical composition of a vapor cannot be taken to de- termine its narcotic property. Bodies of very different composi- tion, e. g. nitrous oxide and benzol, act as anaesthetics. Many * Also in our own army during the late civil war, where only eight deaths are reporte to one hundred and twenty thousand administrations. 8 good ansesthetics are simply hydrocarbons; but so also are com- binations of hydrogen and carbon with chlorine (chloroform) of carbon with chlorine (tetra chloride of carbon), of carbon with oxygen (carbonic oxide), etc. Dr. Richardson had been unable to devise any satisfactory explanation of the mode in which anaesthetics act upon the sensor- ium. He thought it probable that there were two modes ; that some directly interfered with the changes in the blood while others interrupted function by immediate contact with the sensorial or- gans. The first class he called negative, the second, active sub- stances. (Amer. Jour. Med. Sci., 1871, page 250.) Dr. Sansom, in his book, lays down these modes of death : 1st, Syncope; 2d, asphyxia; 3d, necremia. With a view, however, to perspicuity, we prefer the classification of Dr. Rich- ardson, and shall divide the methods of action of anaesthetics into two classes. 1st. Those cases in which they are supposed to act upon the blood, and which action is more or less influenced by the presence of some materies morbi that may exist in the vital fluid. 2d. Those cases in which their action is directed to the sensorium, producing direct shock, as when the par vagum is sud- denly impressed by full inspirations of undiluted vapor. Taking chloroform as the type, we have pretty strong evi- dence of its behavior in one of the two ways above indicated. Being devoid of oxygen, except such quantities as may be gath- ered from the air during inhalation, it is not unlikely that as- phyxia would more readily take place from long continued in- spirations of its unmixed vapor than some others in the table. That chloroform does readily enter the blood, has been abun- dantly proven in numerous instances, both before and after death. Dr. Ragsby detected it in the blood by distilling an ounce from a flask. Dr. Snow, proceeding in a similar manner, has proven that chloroform may be detected in various parts of the body (vide U. S. Disp. Article,Chloroform.) Mr. Playfair,* of London, in quoting Dr. Zweifel, of Berlin, also records that it may be de- tected in the umbilical cord, of new born babes whose mothers have taken chloroform during the labor. In cases of blood poisoning by ansesthetics we notice, first, a general livid appearance of the skin with labored and stertorous breathing, preceding the fatal asphyxia. Cases particularly in- fluenced in this way may be those who have been subject to delirium tremens, or excessive alcoholism, prior to the administration of the anaesthetic, or from other causes that would tend to deteriorate the blood, as .phagedenic ulceration, or septicaemia. Again, there may be a toxic property developed by the organism itself, when being brought into contact with the vapor of those agents produc- ing anaesthesia, under certain conditions-properties existing otherwise in a nascent state, either in the system or the agent em- ployed. On the other hand, when death is from shock, it is not # London Medical Record, June 24, 1874. 9 necessary that the anaesthetic should enter the blood, but being suddenly and rapidly inhaled a profound impression is made upon the sensorium, which being reflected back on the heart, "the patient is destroyed as suddenly, and in the same manner, as sometimes happens from swallowing rapidly a draught of ice-water or clear spirits, or from a trifling blow upon the epigastrium." Dr. Reeves, in his article on "Cause of Death from Chloroform, etc," reported in the American Journal of the Medical Sciences, October, 1867, gives eleven cases of death from chloroform, where the subject had been of intemperate habits; others who had sloughing ulcers, malignant tumors, etc. The following is a statement of cases proving fatal: Case 1-In a London Hospital.-The subject of bad constitu- tion and presented signs of delirium tremens. Case 2-St Thomas Hospital.-The man was of intemperate habits and had had an attack of delirium tremens. Case 3-London Hospital. Anaesthetic administered for previous delirium tremens. . Case 4.-The patient's countenance showed the effects of hard drinking. The chloroform was given rapidly, until two drachms had been administered, then forty or fifty minims were added, and "while the vociferation and struggling yet continued, some stertor appeared, and the sponge was at once withdrawn. In another minute full stertor came on." Case 5-Northampton Infirmary.-Patient of drinking habits. Case 6.-University College'Hospital-" She had been in the habit of drinking pretty freely." Case 7-King's College Hospital.-Very intemperate habits. Case 8-University College Hospital.-"Intoxicated." These are all the particulars given. Case 9-King's College Hospital.-"Not in good health- intoxicated." The above cases showed the result of chloroform inhalation by inebriates, and in almost all, the language of the Hospital Re- ports has been adopted. We have no knowledge that any of the above cases died suddenly, or that it is possible to attribute any of them to direct shock. Other fatal cases are reported where the patients were of intemperate habits, but, as in some instances, the death was brought about from want of due regard to the condi- tion necessary to a safe administration, we will not include them in this class. Another complication is where organic derangement, or local lesion exist at the time of inhalation. Of these, we select the following: Case 1-Dreadnought Hospital Ship.-Two and a half drachms given at intervals, on lint, for the application of nitric acid to syphlitic sores. "Anaesthesia imperfect, resisted the application of the acid ; struggling ceased ; face pallid; pulse and breathing- stopped. Case 2-Vienna, Nov. 11, 1853.-Young man. Death at the expiration of a quarter of an hour. " Patient addicted to onanism." 10 Case 3-Westminister Hospital.-Post mortem showed fatty degeneration of the heart in a high degree. Case 4-Guy's Hospital.-Fatty degeneration of the heart. Case 5-Sept. 15, 1852.-Had inhaled chloroform before, but exhibited bad symptoms soon after one of the previous inhala- tions. " Fatty degeneration of the heart." Case 6 * -Hopital Beaujou, Paris.-A case of humid gan- grene. Death before the completion of the operation, which was amputation of the finger. Case 7 * -United States Military Hospital, Jefferson City.- A case of humid gangrene. Death soon after the completion of the operation, which was amputation of the thigh-lower third. Case 8 *-Private practice, Sedalia, Mo.-A case of humid gan- grene. Death before the completion of the operation, which was amputation of the leg. Case 9-United States Hospital, Beverly, N. J.-Case of second amputation. Wound sloughing. " Death was not sudden, but came on gradually." Case 10-Manchester Royal Infirmary.-Operation for Malig- nant tumor of the thigh. Case 11.-Hopital la Pitie.-Painful hemorrhoidal tumor; also aneurism of the aorta. The above cases are sufficient to call attention to blood poi- soning as the probable cause of death. The fact that death may occur from shock, and before the blood has had sufficient time to imbibe any toxic property from the anaesthetic, may be shown by the following exhibit, taken also from the tables of Dr. Reeves. Case 1-Madam Labrune, Longres, France.-Inhaled chloro- form for extraction of tooth. "Complete insensibility was not produced at the first trial; more chloroform was placed on the handkerchief, and she drew a full inspiration. She died as if struck by lightning. Case 2-John Atkinson, Melbourne, Australia.-Upon the first application of chloroform, "the patient suddenly expired." Case 3-Madam W., Ulm, June 27, 1852.-Died after four or five full inspirations. "The patient's husband said that the time between the inhalations and death was so short that one could scarcely have said yes or no." Case 4-Wife of a physician.-The patient was seated on a sofa, and began to inhale very eagerly; " but had no sooner com- menced than she gave a sudden start and was gone." The conditions contra-indicating the use of general anaes- thetics may be set down as follows : 1st. Heart disease. 2d. Disease of Lungs. 3d. Extensive chronic abscess. 4th. Phagedenic ulceration, including humid gangrene. 5th. Derangement of blood by chronic alcoholism. * These cases not included in Dr. Reeves' Report. 11 As regards the agent used, care should be taken, ist. That the article be pure. 2d. It should be given by a competent person. As regards the subject: ist. The patient should be in a horizontal position. 2d. The stomach should not be distended with food or water. 3d. The administration should not be too rapid, or too pro- longed in bringing the patient sufficiently under the influence of the anaesthetic for operation. Great care should be taken, even where no incompatibility is known to exist, to see that a sufficient amount of oxygen is mixed with the vapor during its inhalation. Few surgeons are now so bold as to recommend the inhalation of pure vapor of chloroform or ether. A good plan, and one which, scientifically speaking, is correct, is the one suggested by Mr. Clover, of London ; but his apparatus is too bulky and unwieldy, besides being too expensive to insure its adoption by the general practitioner. Dr. Oscar H. Allis, of Philadelphia, in his paper read before the Philadelphia County Medical Society, October 14th, 1874, gives all the details necessary to insure safety to the patient, and satisfactory results to the operator. " Safety does not lie in an inhaler," as the Dr. very truthfully remarks, but in him who uses it Chloroformists should have no other business to attend to during an operation, but to attend to the anaesthetic. The use of mixed vapors has been proposed, and is sanctioned by high authority. The Chloroform Committee of the Medico- Chirurgical Society of London, recommend three mixtures- ist. Alcohol I part. Ether 3 parts. Chloroform 2 parts. 2d. Chloroform ..ipart. Ether 4 parts. 3d. Chloroform 1 part. Ether 2 parts. The introduction of alcohol is probably due to the sugges- tion of Dr. Sansom, and will act, no doubt, an important part in counteracting, by its stimulant properties, the depressing influence of chloroform ; ether acting the same way, in all probability, in combination. The great danger to be encountered is the unequal evaporation of the fluids, as you can not tell whether you are administering an equal proportion of the vapors of the mix- ture, or whether you may not be administering absolute chloro- form. The last mixture proposed in the above table has generally been looked upon as a perfectly reliable anaesthetic. Mr. Robert Ellis, of the Belgrave Dispensary, who is good authority, seems to think differently, and after numerous experiments has come to the following conclusions. ist. That the ingredients of fluid anaesthetic mixtures evapo- rate, in a great degree, independently of each other, and in ex- 12 tremely differing quantities. 2d. That though alcohol exerts, in vacuo, a powerful influence in restraining and equalizing their va- porization, this influence is in a great measure annulled in evapo- ration into free air, as in an inhaler. 3d. That the only method of obtaining a true anaesthetic mixture is by consideration of the respective volatility of its ingredients, and so adjusting their pro- portions as to provide that all should evaporate simultaneously. 4th. But as this can only be done by a very great reduction of the quantities employed, both of alcohol and chloroform, then the object of the mixture is entirely frustrated, and it is reduced in its properties to one similar to ether only-the most volatile of the ingredients always taking precedence of the rest. 5th. That if impure alcohol and ether are used, the defects of unequal vola- tilization become still more exaggerated, and the result vitiated by the water left behind. (American Journal Medical Science, July, 1867, page 248). Dr Ellis speaks of a case proving fatal in Bristol, where a mixed anaesthetic was administered. Dr W. A. Hammond reports a case, while Asst. Surgeon U. S. A., of the administration of mixed vapor, or tincture of chloroform to a soldier of the 2d United States Dragoons, which proved fatal. (American Journal Medical Science, July 1858.) In order to insure an equal evaporation of the various fluids used, Dr. Ellis has invented an instrument, for which he claims that a certain per cent, of chloroform vapor may be made to pass over, and by keeping the different agents separated in the inhaler he, by this means, secures the desired proportional mixture of the vapors without mixing the fluids at all. (Half yearly Abst. of Med. Sci., Vol 44, 1866, page 167.) Upon the same principle, Dr. Andrews, of Chicago, suggests the propriety of mixing one part of oxygen and three of nitrous oxide, this being perfectly safe in the longest operations. The union must be mechanical and free from the admixture of atmos- pheric air. Intravenous injections for the purpose of producing gen- eral anaesthesia have also been proposed. Mr. Ore forward- ed to the Paris Academy of Science the particulars of two cases of anesthesia produced by the intravenous injection of chloral.- One case of necrosis of tibia and the other a case of ovariotomy. In both cases complete anesthesia was produced and no accident accompanied or followed their use which could be attributed to the chloral. Dr. Lande reports a case to Dr. Ore, the origina- tor of this practice, in which complete anesthesia was produced in thirteen minutes. Five grammes of chloral was injected. The operation, which was ovariotomy, on account of adhesions lasted about half an hour. The patient soon began to sink and died in a little more than an hour from the commencement of the opera- tion. Dr. Lande thinks the moderate hemorrhage, together with the anaemic condition of the patient, caused her death. "Such a conclusion, however, will be disputed, since it is far more prob- 13 able that death occured from the agent used being directly intro- duced into the circulation, the effects of which could neither be modified nor arrested." Compression may be of service in producing a local anaesthe- sia. The ancients were not entirely ignorant of this fact, and certain forms of pressure and compression were successfully used by them to relieve pain. The late Dr. Waller suggests compression of the vagus nerve to relieve the pain of surgery. When it is not desirable or necessary to obscure consciousness-as in amputation of the fingers, the rubber band compress will sufficiently blunt the sensibility for all practical purposes-both for the comfort of the patient and the operator. M. LeFort relates to the Surgical Society of Paris, "a case of excision of the elbow which he had performed by Esmarch's bloodless method, without the patient's having felt any pain." Other experiments were not so successful, and it yet remains un- certain whether the anaesthesia by compression is sufficiently com- plete for capital operations. Whatever agent may be decided upon there are some minor details, to ensure safety, that are often overlooked. No one can be free from danger who dashes on his chloroform by the spoon- ful, and disregards the demands of nature. If your patient de- sires to spit, which is often the case, especially in ether inhalations, do not restrain him ; and if vomiting comes on, turn him com- pletely over, face down, that no ejected matter may be forced into the trachea. If the towel cone is used, leave the sponge out, and allow a free ingress of air from the apex. A few drops of chloro- form applied at a time will be sufficient, and very few operators will require more than from two to three drachms, if properly utilized. There is another precaution that is necessary, and which is urged upon new beginners, viz.: in the administration of an an- aesthetic it is very important that you select two competent assist- ants, to hand things that may be needed, and to restrain any vio- lent motions of the patient; and who can also serve you as wit- nesses if occasion requires. The hallucinations of the mind, after the administration of anaesthetics, often cause some strange revel- ations. Sensual emotions are not unfrequently excited in both sexes. "A man who had been married about three months, stated on awakening, that he had been dreaming of his wife; and an unmarried hysterical girl certainly gave evidence, by her move- ments, that she was quite aware of one of the duties of married life ; " and moreover delicate females coming out from under the effects of anaesthetics will sometimes address you in terms more en- dearing than elegant or proper. It is but the part of wisdom, then, that the profession should guard well the precincts of her honor. The great conflict between chloroform and ether has had strong advocates among eminent medical men, both in Europe and America. The Americans may justly be said to be the origi- 14 nators and champions of ether; while the Europeans hold with as much pertinacity to chloroform. The effort recently made to re-introduce ether into England seemed for a time an assured suc- cess. The faith of English surgeons bowed before the eloquent appeals of America in favor of ether, like the massive oak before the gathering storm; but now that the storm is over, they stand erect, with an abiding confidence in the safety and power4of chlo- roform. "The great difficulty," says a recent writer, "inaccu- rately estimating the comparative advantages and disadvantages of ether and chloroform, has been, that the advocates of either agent-like those famous knights who fought because they looked on different sides of the same shield-have little or no personal experience with any but the one anaesthetic which they habitually employ; the chloroformists, confident of the superiority of their favorite, make no use of ether; while those surgeons who prefer the latter agent, firmly convinced of its greater safety, hesitate on conscientious grounds to employ what they look upon as the more dangerous agent-chloroform." In order to call out the opinion of some of the leading med- ical men in this country and Europe, I addressed a circular letter, asking their views upon the comparative safety and efficiency of the various agents used for anaesthesia, and also as to the patho- logical conditions forbidding their use. In reply to said circular letter, I received thirty-four answers. Six were in favor of chlo- form, ten for ether, eight neutral, and ten who gave no opinion either for or against. Nearly all were agreed in speaking of the pathological conditions forbidding the use of anaesthetics, such as fatty heart, or any serious organic lesion, some expressed the opinion-and I think the ground well taken-that it is not always possible to know the pathological condition of the patient upon whom you are about to operate. Mr. Rigden, of London, in a letter to me upon this subject says: "I know of no pathological condition forbidding the use of an anaesthetic. I have given chloroform and ether successfully in all forms of heart disease. I have always believed, and have acted on the belief, that if the patient is fit for an operation, he is fit to take an anaesthetic for it. " This would seem to be the safer doctrine-never give an anaesthetic where any doubts are entertained of their admissi- bility, unless 'the operative procedure, from its gravity, impera- tively demands it; then we should not hesitate, as the shock would certainly be less with than without it. In case of blood poisoning, when death is about to ensue from the use of an anaesthetic, our attention should first be direc- ted to exhalation. There is probably no other remedy likely to avail in such a painful emergency, when this central fact is ig- nored. Dr. Nunneley, of the Leeds Infirmary, states that, in his opinion, we have no antidote for an overdose of any anaesthetic, and no remedy except exhalation of it from the blood as this is brought into contact with the atmospheric air. The best means, then, to restore your patient, is respiration. 15 This can often be done by artificial means to inflate the lungs- keeping up a kind of diaphragmatic breathing, by compressing the lungs in quick succession, and occasionally filling the lung from the mouth of the operator. The patient should be imme- diately placed with the head downward, that any redundant va- por may be made to pass away, either by its gravitating tendency or by the pressure of the viscera upon the diaphragm forcing the vapor out of the lung. Another very important object is attained by this position-the blood at once flows to the brain and stimu- lates that organ, and if death be caused by anaemia of this organ, as maintained by Nelaton, this position alone might insure a res- toration of the power of life. The graphic description given by Dr. J. Marion Sims, of a case of chloroform narcosis in a case of his while in Paris [read at the 42d annual meeting of the British Medical Association, held at Norwich, August 1874], in which Nelaton saved the life of his patient by inverting the body, hanging the head down and raising the feet high in the air, would seem to leave no doubt about the propriety of this procedure. In this case life was three times extinct, and was as often restored by the inverted position and artificial respiration. Some other cases have been reported since the publication of Dr. Sims' St. Germain case, where the same plan was adopted and a like favorable result ensued. In case of death from shock, the power to resuscitate by the above or any other plan, is very apt to prove abortive. The gal- vanic current, the dashing of cold water upon the naked surface of the body and face, or slapping the patient with the open hand, or any sudden impression, as powerful excitants, applied to the body, are not likely to be of much benefit. I have seen employed, by men who had no fear of their reputations, the actual cautery, creating a lively blaze over the region of the heart. This latter proceeding can only be condemned as utterly useless, inhuman and barbarous. The question as to whether any real good has been achieved by the discovery and use of anaesthetics has by some been con- troverted, and the rate of mortality held to be greater since than before their use. By others the opposite ground is taken, that a great benefit and saving to life has been secured by their introduc- tion. Sir James Y. Simpson assumed the latter to be the fact; while Mr. Arnott, likewise good authority, as persistently argues the contrary. That anaesthetics have been, and are likely more than ever to be, a great boon to suffering humanity, is beyond all contro- versy. That pain can be of any use to the pained, might do as a maxim for the ancient fathers in medicine, but this maxim will not do for surgeons of the nineteenth century. A Spanish In- quisition might resort to torturing pain to force confessions from their victims; but no enlightened people of our day will tolerate such barbarism. Pain made Csesar weep, and the stoutest heart will fail when the body is enduring the anguish of Neuralgia. A 16 hero may fight an hundred battles successfully, and move as majes- tically as a God, but let the mere filament of a nerve become compressed, and he struggles and cries to escape the unendurable agony. In the language of the American Nestor in Surgery, no gentleman, not to say Christian, would needlessly inflict pain on any creature. It was, indeed, a certain kind of humanity which lead the Athenians to execute Socrates, by means of a narcotic draught, and which also made the Romans give their malefactors, during crucifixion, drugged wine. Even the guillotine had its conception in a kind of humane sentiment. Only savages inflict upon their victims the horrors of torture. And I do not believe that there is a surgeon of the nineteenth century who would wil- lingly inflict any unnecessary pain in his operations if once prac- tically acquainted with the means of prevention, and once confi- dent and facile in their use.