R664c 1834 A COURSE OF FIFTEEN LECTURES, ON MEDICAL BOTAJVF, DENOMINATED THOMSON'S NEW THEORY OF MEDICAL. PRACTICE; IN WHICH THE VARIOUS THEORIES THAT HAVE PRE- CEDED IT ARE REVIEWED AND COMPARED. DELIVERED IN CIHCINH ATI. OHIO, BY SAMUEL ROBINSON. There are herbs to cure all diseases, though not every where known. Dr. Ray. The Flora of our country will yet so enlarge and establish her dominions, as to supersede the necessity of all other remedies. Dr. Mitchell, Omnibus in terris, quae sunt a Gadibus usque— Auroram et Gangem, pauci dignoscere possunt Vera boua. atque illis multum diversa remota Krroris nebula. Jvr. Sat. WITH INTRODUCTORY REMARKS BY HH* PROPRIBTOR. iSoaton: v £ J. HOWE, PRINTER, No. 39, MERCHANTS ROW, /ft^ 1834. " Entered according to Act of Congress, in the year one thousand eight hundred and thirty, by Samuel Thomson, in the Clerk's Office of the Dis- trict Court of Massachusetts." ,i.,Jery old opinion, and has been beautifully embodied by the poet, in these celebrated lines: " All are but parts of one stupendous whole, Whose body, nature is and God the soul; That, chang'd through all, and yet in all the same, Great in the earth as in the etherial frame j Lives in the sun, refreshes in the breeze, Glows in the stars, and blossoms in the trees ; Lives through all life, extends through all extent, Spreads undivided, operates unspent; Breathes in our soul, informs our mortal part, As full, as perfect, in a hair as heart; As full as perfect, in vile man that mourns, As the rapt 6eraph that adores and burns, To him no high, no low, no great, no small; He fills, he bounds, connects, and equals all!" This is not the doctrine of Spinoza who made God the soul of the world; but the pious doctrine of a universal providence, and the omnipresence of the Deity in the government of the world. Look at the smallest plant or insect, you behold him there, in his matchless wisdom and sustaining power, for- ming the mechanism and moving the vitality of a creature so small and inconsiderable, and apparently worthless in the great sum of things. The Psalmist took a most striking and comprehensive view of this sublime and glorious theme. "Whither shall I go from thy spirit ? Or whither shall I flee from thy presence? If I. ascend up into heaven, thou art there! If I make my bed in hell, behold thou art there! ! If I take the wings of the morning, and dwell in the uttermost parts of the sea, even there shall thy hand lead me, and thy right hand shall hold me. If I say, surely the darkness shall cover me, even the night shall be light round about me !" This was the true sentiment and doctrine of the ancient philosophers, the presence and superinten- dence of the Deity every where. They were not 70 Atheists, although the miserable Spinoza wrested their doctrine to his own malignant and deadly pur- pose. But he might well do that, when he turned the Jewish Scripture to the same account, for he was a Jew, and deeply read in the Old Testament. But the wasp can extract poison from the flower: So did his perverted soul draw death from the wells of salvation! As the doctrine of life and health cannot be known by reasoning a priori, but must be deducted from experience and observation, some very eminent men have thought that its laws and principles should be divided in a different manner from that of the scho- lastic mode: That so many divisions of the theory of life and disease, which have prevailed since the days of Galen, have not only embarrassed but be- wildered the subject; and that the laws and princi- ples, therefore, should be divided in a different man- ner, 1st, that the human blood is the recipient and vehicle of heat and life to the several parts ; 2d, from many experiments pure air appears to be the pabulum of irritability ; for the absence of pure air destroys life sooner than the defect of any other natural substance; 3d, the next in importance to the animal economy, seems to be the nervous fluid, or the medulla of the brain and spinal marrow; for they have all the same nature and origin; 4th, sen- sibility, residing in the organ of sense, connecting the mind with the external world. The term Physianthropy, has been devised for the purpose of expressing, in one word the healthy, the morbid, and the curative nature of the vital ac- tions. Pathology has been also subdivided into Semiol- ogy, or the doctrine of symptoms; and Nosology for the names and division of diseases into their genera and species; a most tedious and terrible array, for the head of the poor disciple of Esculapius. Dr. 71 Rush has here great merit in banishing nosology from the walks of medicine. You have only to im- agine the dilemma of the practitioner, looking, in silence, on his suffering patient, until the disease would develope itself, that he might understand its nature ; for this was necessary before he could pre- scribe. Dr. Rush laid, at once, his finger on the pulse, and directed, without delay, deplention or stimuli. This short, and sudden process, gave oppor- tunity of routing the enemy, (as the doctor used to say,) before he had time to entrench himself in the human vitals! Therapexdics do very well to express the curative indications. But it has been often suggested, that the above terms have been considered too much as separate subjects of pursuit, and independent of each other; and are used often without due consid- eration, in the antiquated and scholastic manner. All these, Pathology, Semiology, Nosology, The- rapeutics, depend on Physiology, as it depends on Anatomy. For no principle, or mode of action of the human body, in health or in disease, can be ei- ther learned or understood without an accurate ac- quaintance with physiology. Medicines, says Dr. Hoffman contain no inco- herent principles of action in themselves. They do not act on the dead body, said Hippocrates, and their action on the living body depends on the state in which they find it; whether torpid or irritable, strong or weak, and it is the same with all parts of regimen, food, drink, air, exercise or any other. This is sound philosophy, and has been illustrated by Dr. Cullen, on sensibility and irritability. Sen- sibility, when often excited, becomes dull and loses its force, thus a dose of opium, if continued a few days, must be increased, or it will have no effect. On the contrary, irritability augments by being excited, if an emetic be repeated for several days, 72 the dose must be diminished; the irritation of the stomach will not bear the original quantity. It must be diminished daily. Medicinal substances may be understood perfectly in their chemical properties, as they are by some apothecaries, and yet we may be perfectly ignorant of them in their physical operations on the human body. This distinction will show that Dr. Thomson, without a knowledge of chemistry or botany, may know the physical operation of his medicines, better than the most profound chemist. For this knowledge must be learned by experience, arid not in the dust, and toil, and retirement of the schools. Hippocrates has given us the clue ; medicines affect the body ac- cording to the state in which they find it. The state or condition of the body, and the operation of the medicine on that state, we commonly learn, as Thom- son learned it, by experience. Dr. Brown, by reducing all diseases into two clas- ses, sthenic and asthenic, ascertained, at once, to which class the complaint belonged, on visiting his patient, and proceeded accordingly to remove the debility. Dr. Rush, by making disease a unit, caused by morbid excitement, and its state or condition to be ascertained by the pulse, would decide with equal facility, on the mode of cure ; equalize the excitement Dr. Thomson, by making disease the general effect of one general cause, obstruction, has fixed his remedy, like the others. Remove the obstruction, is his cure; Remove the debility, was Dr. Brown's cure • Remove the morbid excitemeet, was Dr. Rush's cure' and all by different stimulants. The debility was removed by diffusive stimulants: The Morbid ex- citement, by diffusive stimulants: The obstruction bv diffusive stimulants. ' These gentlemen, though they have travelled on far diverging paths, yet, at the end of their journey, 73 they have met almost in single point. They began their career together about the end of the last century ; and before the middle of the present, it is impossible to say what may be the estimation in which they shall be held by the world; or the cures effected by their discoveries. I am not one of those who think wisdom is to be obtained by idleness, or gained by chance ; and yet I know that some of the most valuable discoveries in the world, have been made in obscurity, and have sprung as it were, from fortuition, not that I believe that there is any thing absolutely fortuitous, but to humble the pride of man, who is too apt to lean on the might of his own arm, and ascribe to himself the merit of great discoveries. The Deity concedes them to the humble and illiterate, while they are withheld from the proud aspiring sciolist, or doctor of the schools. Let those who despise Dr. Thomson and his dis- coveries, because he is, or was, poor and unlearned, remember the words of him, who knew the heart of man, and has left us an admonition that should sink us into the very dust. "I thank thee, O Father, Lord of heaven and earth, because thou has hidden those things from the wise and prudent, and reveal- ed them unto babes." -^♦©®®-"" LECTURE VI. IMPROVED THEORY OF MEDICINE. If we wanted additional proofs of the necessity of Divine Revelation, to direct us in the way of truth, we have them in abundance, in reviewing the different theories of animal life, suggested by med- 7 74 ical writers. Walking with them, we have to ex- plore aj wilderness, dark and trackless, and inter- minable as the terra incognitia* of ancient days. But when we turn to revelation for an account of life, our minds expatiate in a boundless field of heavenly light; survey objects in the reality and spirit of their being ; behold prospects of truth, and glory, and magnificence, where the mere light of nature could never penetrate, nor the rays of human wisdom shed their radiance. I know the mind of man possesses creative pow- ers and transcendant faculties, the limits of which even he himself has never ascertained. Yet his ut- most art and skill, exerted with all the ardor and daring flight of genius, will never enable him to penetrate the mysteries which God has hidden in himself; and life is one of them. But the rays of revelation have beamed upon it, and showed us its origin and end. It is neither atmospheric air, nor any other material thing, which man can analyze. The inspired Elihu has described it in language lofty as the theme. It is the spirit and breath of the Al- mighty. " For if he gather unto him his spirit and his breath, all flesh would perish together, and man return to his dust." If men of science would give more attention to the study of the living oracles, they would discover many truths, find out many mysteries, whioh are unfolded and displayed on the awful pages of that book, sealed with the seven seals, which' they in vain endeavored to discover in the volumes of hu- man wisdom. Life and immortality are brought to light by the gospel. The most learned and wise of the ancient Greeks, bewailed their ignorance and their uncertainty of the nature and condition of a future state of existence. No light of nature, * Undiscovered continent. 75 could pour its blaze through the dark impenetrable glooms of the grave ; no light of life, for them, had ever irradiated the horrid mansions of the dead. From the cold repulsive embraces of the king of terrors, nature had no refuge, and furnished no rem- edy. When we behold a Darwin laboring to con- found himself, and his followers, by a hopeless athe- ism, and sink them to the rank of reptiles, we pause to admire and to reverence the wisdom of those an- cient sages, who sighed for immortality, although their hopes were doubtful, and their evidence fee- ble and fluctuating. In reference to their anxiety, and their condition, the Saviour said as reproof to the Jews, "many prophets and righteous men, have desired to see those things which ye see, and have not seen them." What a sad and solemn reproof, which applies with equal force to infidelity, to the present hour. For if the investigations of mind, of physiology, and anatomy, were carried on with that spirit of liberal and subdued philosophy, which bows the soul to the behests of Heaven, how rapid would be the ad- vancement in those pursuits; and how different would be the results, from the current course of the present achievments and speculations, in which pro- fessors appear, like the Roman gladiators, on the arena of combat, only to hew each other down? Galen was converted from atheism, by the study of anatomy, and wrote a hymn of praise to the Dei- ty, to celebrate his wisdom and power, in the admi- rable structure of the human form. Having observ- ed the exact distribution of the nerves to the mus- cles, the arrangements of the face for expression and beauty, the structure of the bones for strength and motion, he exclaims, " H