THE Work of the Sanitary Engineer IN TIME OF EPIDEMICS, IN TIME OF WAR, AND IN SUDDEN CALAMITIES IN CIVIC LIFE. BY WILLIAM PAUL GERHARD, C.E., Consulting Engineer for Sanitary Works, 36 Union Square, E., New York. [From The Sanitarian for June, 1895.] New York: BURR PRINTING HOUSE, 18 Jacob Street, 1895. THE WORK OF THE SANITARY ENGINEER IN TIME OF EPIDEMICS, IN TIME OF WAR, AND IN SUDDEN CALAMITIES IN CIVIC LIFE. By William Paul Gerhard, C.E., Consulting Engineer for Sanitary Works. In the present age of keen business competition, and in the stern realism of modern life, one is far too apt, in choosing or in pursuing a profession, to consider purely the business aspect involved, or, in other words, the expected financial gain, and one generally forgets the humanitarian side incident to every professional man's career. In the every-day life of a nation, of a State, or a community contingencies are likely to arise at any time which require the exercise of the faculties acquired in the pursuit of a business, trade, or profession in order to apply them-at such times-in the interests of humanity. Among such contingencies are outbreaks of epidemics, war, and great disasters in civic life. I propose in the following to discuss briefly what services and aid the professional man, who has chosen " sanitary engi- neering' ' for his calling, can render in such extraordinary events to the cause of humanity. I. Work of the Sanitary Engineer in Case of Sudden Outbreaks of Epidemics. " Mankind is accustomed to the ceaseless and regular work of death, to the slow removal of human beings from its midst. One may compare it," says a German writer, " to the leaves of a tree, which, after changing color in autumn, drop off one by one as the winter comes. So also, one by one, will men sink into their graves, while new generations arise, only to meet the same fate in the end. This is the inevitable decree of destiny, of the order of things in nature. But the aspect 2 of death changes when an epidemic breaks out. It is then more like the sudden uprising and uproar of a storm, which in its mad fury breaks off delicate branches and twigs and uproots strong and healthy trees. It is death, again, to be sure, which we see all around us when an epidemic rages, but death in a different form, clad in a strange and dismal raiment, which shakes the nerves of the strongest and bravest men. " At such times the people begin to feel that perhaps the wholesale dying need not have taken place, that the causes which led to the calamity might have been avoided-in short, that death in epidemics, far from being a dispensation of Providence, is the result of man's own carelessness or neglect or indifference in sanitary matters. When an epidemic threatens, the work of the sanitary and municipal engineer consists principally and first of all in measures of prevention. He should pay particular attention and care to all hygienic municipal work, such as the public water supply, the sewerage, the scavenging and street clean- ing, the sewage and garbage disposal, the public bath and wash-houses, market-houses, abattoirs, and public water-closet conveniences. Increased cleanliness is required for all public conveyances, hacks, cabs, street-cars, elevated and steam rail- roads, as well as ferry-boats, and stricter attention should be paid to railroad depots, stables, to hotels, and to public lodg- ing-houses. It is well, at such times, to institute a sanitary survey of the city, including a house-to-house inspection, with particular regard to the tenement districts. Hospitals for the reception and care of infected patients should be planned, located, and arranged. Speaking broadly, the problems which in such a case arise for the sanitary or municipal engineer consist in stricter and closer attention to the sanitation of the soil, the air, the water, the food supply, and the dwellings of a city. In case the epidemic actually breaks out, the extraordinary duties of the sanitary engineer embrace mainly the following work-viz.: 1. Measures for the protection of those who are not sick. 2. Measures for the proper care of the sick. 3. Measures for prompt and safe removal and disposal of the dead. 3 While some of the work to be performed is of a medical nature, not a little of it, particularly as regards preventive measures, belongs to the province of the engineer. Both the physician and the sanitary engineer should therefore work hand in hand, and assist and supplement each other. Phy- sicians, however, are rarely sufficiently educated in technical details of sanitation, and it seems at least doubtful, if it would not be a serious mistake, to put all the preventive measures in the exclusive charge of health officers. A division of the work would be, to my mind, far preferable, and would offer considerable practical advantages. Among measures for the protection of those who are well, the preservation of the purity of the drinking water is of great importance. Regular periodical chemical and bacteriological examinations of the water supplied by the city water-works should be instituted. The sanitary engineer must have a suffi- cient knowledge of the noxious components of water, and of the methods of detecting these impurities or contaminations, in order to be able, if not to perform the analyses himself, at least to interpret the results of the chemist's and microsco- pist's work correctly. In addition to this, it is essential that all public wells in streets or squares, as well as those in private grounds, be watched with care. It is advisable to close up at once all suspicious wells. Likewise should all rain-water cis- terns be cleaned and purified, and where filters are used, the filtering material should be sterilized or renewed. It is better, however, to avoid entirely during epidemics the use of filters, and to make it a practice to boil all water used for drinking purposes. Finally, the ice supply should be watched, the sale of all impure ice or ice cut from contaminated ponds prohib- ited, and the householder cautioned to use the ice which is intended for the cooling of beverages in vessels with separate compartments, so that the melted ice cannot mix with the water. The sanitary engineer should look after the city sewers, and should take the necessary steps to insure that they are well flushed and ventilated, and that the catch-basins and street gutters are kept clean. If necessary, he should apply disin- fection to the sewers. Medical men should make it a strict rule that all discharges of the sick are disinfected before they 4 are thrown into water-closets or slop-hoppers, to pass away through the house sewers. The police and sanitary depart- ment should prohibit during epidemics the throwing of any evacuations into rain-water inlets, gutters, catch-basins, or privy-vaults. Where there is a sewer in the street, the con- nection of all houses to the same should be made compulsory. Houses without sewerage facilities, depending upon privy- vaults, earth-closets, and cesspools for the liquid wastes, re- quire at such times more than ordinary attention. Old or badly constructed sewers, generally filled with a mass of putre- fying deposits, are particularly capable of propagating an infec- tious disease through the house connections, the street catch- basins, and the open or ventilating manhole covers. Such sewers will need a thorough disinfection, with either milk of lime or with sulphur. Next to a system of water-carried sew- erage, a well-arranged system of dry removal by pails is the best during an epidemic ; but the removal must be well organ- ized and occur regularly, and the pails should be well cleaned and disinfected. It is better not to empty privy-vaults or cesspools during an epidemic, except where their contents are first thoroughly sterilized by germ-killing disinfectants. Where the town sewage is regularly purified before dis- charge into a water course, the sanitary engineer must watch, with care the sewage field or the chemical precipitation tanks. All sewage should reach the irrigation field before it has begun to putrefy. In the field it should be evenly distributed, and all stagnant pools of sewage should be removed. The utmost cleanliness must be maintained in the streets of the city. All paved surfaces must be regularly swept clean, and the cleaning up of back and front yards, of courts and alleys and street gutters, should not be forgotten. The streets should be moderately sprinkled to lay the dust, which if scat- tered may carry disease germs into dwellings ; if necessary, disinfectants should be added to the water in the watering- cart. All street dirt, house refuse, and garbage must be removed with particular regularity, for they may contain the germs of the disease. Householders may assist the municipality by burning litter and refuse in the house fires whenever it is pos- sible to do so. Manure pits of stables require careful atten- 5 tion. In times of epidemics, the destruction of the city refuse by cremation appears to be by far the safest mode of proceed- ing. The disposal of the garbage by removal offers consider- able difficulties even in ordinary times ; but during an epi- demic the question of removal is apt to be particularly embar- rassing, for the very act of removal may cause a further spread of the dreaded disease, and quarantine laws will in many cases render removal out of town utterly impracticable. On the other hand, the sanitary engineer must avoid at such times the accumulation of large masses of putrefying garbage and offal at any point within the city limits ; hence sanitation by fire seems about the only solution of the problem. The battle against filth diseases always requires the main- tenance of absolute purity of the soil, the air, and the water. While general cleanliness, light, air, and water are the best available general means of disinfection, it is necessary, during epidemics, to provide well-appointed places for a proper dis- infection by steam of all wearing apparel, and of the washing of those who have been taken sick. Disinfecting stations for persons, such as were used in Stettin in 1870-71, and exhib- ited by Professor Petruschky, of Kbnigsberg, at the Berlin Hygienic Exhibition of 1883, are also to be recommended. In these the persons take an ablution with antiseptic soap under a shower or rain-bath, while their clothing is disinfected for about twenty minutes by steam. Following the douche, bath attendants wash the whole body of the bathers thor- oughly with permanganate of potash solution. If proper care is exercised in the maintenance and manage- ment of public baths, it is not always necessary to close these places when an epidemic occurs, for this would deprive many people, who have no facilities for thorough ablutions at home, of the chance to keep their bodies clean, a measure which in itself tends to prevent infection. The public wash-houses, however, should be closed, and physicians should insist that the dirty linen of all patients is sent to the disinfecting station. The municipal engineer must also see to it that all public water-closet conveniences and public urinals are kept scrupu- lously clean, well flushed, and disinfected, while the sanitary engineer in private practice will be kept busy with inspections and tests of plumbing work in dwellings, office buildings, 6 stores, and institutions, and with the more or less extensive alterations of the plumbing and drainage, with a view of mak- ing the same safe from a hygienic point of view. A sanitary survey of the city and a house-to-house inspec- tion will enable the sanitary engineer to know beforehand the actual condition of the worst city districts, generally the tene- ment quarters of the poor population. Efforts should be made to improve the obtaining conditions, particularly in regard to overcrowding and cellar habitations. Public lodging-houses should be put under close surveillance. In hotels those rooms which may become infected by a patient ill with the disease should be properly disinfected, and the carpets, furniture, and bedding must be destroyed. Attention should be paid to public vehicles, particularly to cabs in which patients may have been transported from the houses to the hospitals. This should always be avoided by providing separate ambulances for the infected. As a further measure to protect those who are not sick, it is advisable to close, at the very beginning of an epidemic, all public halls and places of amusement, likewise the public schools, colleges, and boarding or private schools. If the epidemic spreads, it may be better to close up the factories and workshops. The shipping of freight should be stopped, travellers' baggage must be disinfected, and railway-stations and railroad-coaches as well as ships inspected. Then, again, there must be efficient measures for the isola- tion and care of the sick : first, in order not to endanger those who escaped the scourge ; second, to cure the sick. An efficient ambulance service should be organized, largely com- posed during epidemics of volunteer aid corps, like firemen, policemen, militia soldiers, as the regular hospital service of a city will at such times prove insufficient. The sanitary en- gineer may be called upon to provide temporary tent or bar- rack hospitals, where the city hospital accommodations do not suffice to care for the sick. As the school-houses are closed, such buildings may be utilized for hospitals. Military barracks and stables may often be used for the same purpose, while theatres and churches are not as suitable. The tem- porary barracks, while constructed of woodwork, should be arranged in a manner to keep out the cold. Besides pro- 7 vision for heating, they should have hot and cold-water ser- vice, bathing facilities, sewerage, and electric lighting. The location for hospital barracks should be carefully chosen, and in case of an epidemic it is far better to keep them within short distance of the crowded city districts, rather than locate them at the outskirts of large towns. Finally, the dead must be cared for. These should be quickly removed from the hospitals and from the poorer and crowded city districts, using extra precautions during removal and transportation against infection. During epidemics, the final disposal of the dead bodies by cremation offers important advantages. In case of sudden pestilence, many people who are able to do so leave the infected city and fly to camps of safety, erected with refuge huts and refuge tent hospitals. In these, too, the sanitary engineer may find opportunity to assist in maintaining sanitary conditions, by attention to those require- ments which at other times form together what is known as "camp hygiene." Such "tenting out" always necessarily involves more or less exposure to the vicissitudes of the weather, and may cause sickness of a preventable nature. Wherever possible, one should prepare beforehand for the emergencies likely to arise during an epidemic. When the writer was in the Prussian military service, twenty years ago, as a volunteer in an engineering regiment of the Imperial Guards at Beilin, he was ordered for a few weeks to the head- quarters of the general military staff, under General Moltke, and he well remembers how he assisted then in preparing beforehand the railway time tables required for the quick moving of the bulk of the German Army to either the French or Russian frontier in case of a future war. Similarly should the sanitary engineer and the health officer lay out beforehand all the plans required to assist in the fight against infectious disease, so that when an epidemic does occur, it may not find them unequipped and unprepared. II. Work of the Sanitary Engineer in Time of War. In case of an outbreak of war, the civil engineer will be chiefly concerned with the provision of proper means for the speedy and safe transportation of large masses of troops, in- 8 eluding their necessary ammunition ; with the laying of tem- porary railroad tracks and the erection of temporary bridges or the construction of pontoons over streams ; or with the destruction of the enemy's railroad lines or rolling stock and the burning of bridges. The work of electrical engineers will consist in the erection of signal stations, the laying of mili- tary telegraph lines, and the provision of portable electric- light apparatus for the search of the dead, the aid of the wounded after a battle, and for the disinfection of the battle- field. The duties of the sanitary engineer in time of war will em- brace something like the following-viz.: 1. Providing proper facilities for the temporary housing of soldiers, and selection of proper sites for militaiy camps. 2. Enforcement of cleanliness in the camp ; examination of sources of water supply ; purification of water and provision of an ample supply for the troops and horses ; drainage, re- moval of wastes and garbage, and erection of latrines ; also safety measures against fire. 3. Provision and transportation of a proper food supply. 4. The first aid to the wounded on the battle-field and at the dressing stations. 5. The care of the wounded ; erection and fitting up of tem- porary field hospitals, and means for heating and ventilation and electric lighting; transportation of the wounded from the battle-field, and organization of a field ambulance service. 6. Care of the sick in tent or barrack hospitals. 7. Sanitation of the battle-field and care of the dead soldiers ; also the cleaning and disinfection of camps, the destruction of temporary hospitals, and the disinfection of putrefying battle- fields. The sanitary engineer, through his practice in times of peace, is rendered particularly qualified to assist in the hous- ing of an army of troops in the field, to give aid in the care of the sick and wounded, and to prevent in military encamp- ments war pestilence, or diseases and deaths due to deficient sanitary conditions. Statistics record the fact that for every soldier who dies in or after a battle, there are two who fall victims to disease, and that for one soldier discharged as disabled and wounded, 9 there are three who are more or less permanently disabled by disease. At the Shipka Pass, during the Russo-Turkish War in 1877. the daily losses from bullets were far exceeded by those from frostbite. Ours is not a military nation, and dur- ing peace we do not keep a large standing army ; but those European nations who are obliged always to be on a war footing pay, since the Crimean War, a great deal of attention to sanitation. After the battle of Balaklava and during the siege of Sebastopol, in the Crimean War of 1854, the English Army suffered immense losses from sickness in the camp. It is stated that of 100 sick soldiers in the hospitals, only 11 were soldiers wounded in battle ; 46 per cent of the sick died from fevers. It was then that England sent the well-known Miss Florence Nightingale with 40 assistants to the seat of war, and she succeeded in reducing the mortality of the English troops by enforcement of practical measures of sanitation. Military camps should offer to the soldiers shelter against sun and heat, against rain and damp, against wind and storms. In order to be healthful, such camps require an elevated site and a dry subsoil, with good drainage facilities and means for a pure water supply. In choosing and locating camps, the sanitary engineer can render efficient service by making pre- liminary topographical surveys and avoiding all unhealthy sites, the neighborhood of marshes or swamps or alluvial river bottoms, subject to overflow, which tend to foster malarial conditions. If compelled to erect a camp in such a situation, it should be placed well to windward of all suspicious grounds. Old camp grounds had better be avoided on account of the likelihood of a previous soil contamination and the possible incidental danger of infection. Hills and woods serve as pro- tection against winds, and the woods also for shade in warm climates. Cleanliness and healthful conditions must be maintained in camps. Dryness of soil is essential, hence the first care of the sanitary engineer should be to arrange for proper surface drainage, and to provide against floods or excessive rainstorms. He should also make provision for a good water supply, arrange for the disposal of slops and waste water, and erect suitable latrines or plain earth closets. Facilities for perform- ing bodily ablutions, including simple bathing arrangements, 10 should be contrived, as well as means for washing the under- wear and cleaning the clothes and blankets of the troops. For although the out-door life of military service, and the camping out under the open sky tend in general to favor healthful conditions, the want of cleanliness, particularly in the field or during and after long marches, may be a fruitful cause of disease. The camp should be inspected daily. A regular system of scavenging should be instituted, order and cleanliness must be maintained, and the danger of fire must be guarded against. The latrines must be carefully looked after, and likewise must all kitchen refuse be removed to a safe distance. The stable manure of cavalry or artillery encampments should be carted away regularly, and dug into the ground. Soil pollution by the voiding of urine in other than the designated places should be prevented by strictly enforced regulations. Finally, a small field hospital should be erected, either of log-huts or of tents, to care for the sick. When a battle has taken place, humanity demands the early search for, and the immediate first aid to, the wounded, to friend and foe alike, and considerations for the health of the surviving as well as piety require the burial or disposal of the soldiers who fell in battle and of the horses killed. Warm weather and moisture combine to create very soon conditions of war pestilence dangerous to health, unless immediate atten- tion is given to the sanitation of the battle-field. After the battle of Solferino, on June 24th, 1859, n°t ess than 40,000 wounded covered the field, laying exposed to the hot summer sun, which soon changed all into a mass of putre- faction and pestilence. Henry Dunant, a citizen of Geneva, Switzerland, witnessed these shocking sights a day after the battle, and described them in his book, " Un souvenir de Solferino," which gave the first impetus to the founding of the Red Cross Society, at Geneva, on October 26th, 1863. Colonel Naundorf!, in his book, "Under the Red Cross," gives a similar vivid description of the horrors of the Kbnig- gratz battle-field. It took, after the battle of Gravelotte, in the Franco-Prussian War of 1870-71, four days to remove the wounded and dead, and after the battle of Sedan it took six days to accomplish this. Nowhere, however, have the hard- 11 ships of war and the horrors of the battle-field been depicted with a greater master hand, more vividly and realistically, than in Verestchagin's world-famous war paintings, the scenes of which are taken from the Russo-Turkish War. The sights which he saw in actual military service were so forcibly im- pressed upon his mind, that the paintings which he created after the war speak eloquently for themselves. The message conveyed to us by his works cannot fail to teach a lesson and to awaken sentiments in opposition to warfare ; at the same time they point to the urgent necessity of civil aid upon the battle-field. What may be accomplished at such times by civil aid has been well illustrated in the excellent work done by the United States Sanitary Commission in the War of the Rebellion of 1861-64. The barrack or pavilion system of hospitals was originated by this commission, and has had a powerful influ- ence in changing the general plan and arrangement of hospi- tals, and in emphasizing the importance of securing ample ventilation to such structures. The well-known German sur- geon, Professor Frederick von Esmarch, made a powerful appeal for civil aid in his famous essay, " The Battle of Humanity against the Horrors of War," published in 1869. In England John Furley founded in 1877 the St. John Ambulance Association of London, and Esmarch followed soon after in Germany by the establishment of " Samaritan So- cieties," which he aptly calls the" Pioneers of the Red Cross.'' In addition to the aid given on the battle-field by volunteer aid corps, the regular military hospital and field ambulance corps attend to the wounded during and after a battle. It is usual to distinguish three series of stations-viz., the first, dressing station, near the line of battle, where the wounded receive the first aid, and where the temporary bandaging of wounds is done ; second, the field hospitals, composed of tents or barracks located from two to three miles behind the line of battle, to which the wounded are removed in field ambulances, and finally the general war hospitals, which are stationary but usually temporary structures, located at greater distance from the seat of war, and to which the wounded are transported by hospital railway trains or sometimes by hos- pital ships. 12 After the battle the dead must be cared for, generally by interment in large common graves, and sometimes by crema- tion. The introduction of the movable electric-light wagons in the military service has aided greatly in accomplishing this more quickly ; at the same time it may render useful services in the early disinfection of the battle-field to avoid war pesti- lence. HI. Work of the Sanitary Engineer after Sudden Calamities, Catastrophes, and Great Disasters in Civic Life. Many opportunities offer themselves to the sanitary engi- neer for rendering useful services in case of accidents or sud- den calamities, like earthquakes, floods and freshets, de- structive conflagrations, tornadoes and cyclones, forest fires, collapse of buildings, machinery accidents, boiler or powder explosions, railway disasters, and accidents in mines. After a storm flood, caused either by river overflows or by the breaking of dams or water reservoirs, the entire flooded district must be drained, and its habitations must be rendered healthful by artificial drying ; but as this requires considerable time, it is often necessary to erect temporary barracks for shelter, as many people will suffer from lack of homes. All dampness must be removed, disinfection applied whenever necessary, and in houses with deafened floors the wet filling-in material should always be removed, as it may breed disease. After deplorable calamities, such as the flood at Johnstown, Pa., May 31st, 1889, caused by the breaking of a dam above the town during an extraordinary rainfall, and the almost en- tire destruction of the city of Szegedin, in Hungary, in March, 1879, by a river freshet, both of which caused much loss of life, the services of sanitary engineers can be put to good use. Similar aid may be rendered after destructive earthquakes, or great conflagrations, or devastations by tornadoes. Panics and fires in theatres, or in orphan asylums or hospitals for insane, are terrible calamities, often accompanied with appall- ing loss of life. Here, again, the knowledge of sanitary engi- neers can be applied and efficient services rendered, first of all, in providing measures for preventing the recurrence of such catastrophes ; and, second, in rendering aid when such accidents have happened. 13 Then, again, we have a large number of accidents, such as collapse of buildings or grand stands, railway disasters and bridge accidents, injuries in industrial or manufacturing estab- lishments and in workshops, due to unprotected machinery in motion or to defects of hoisting apparatus ; blasting acci- dents, fire-damp explosions in mines, caving in of trenches in earth excavations for sewers or water-pipes, suffocation by escaping illuminating gas in laying gas mains, collapse of tun- nels ; steam-boiler explosions, and explosions of gunpowder or dynamite. In the construction of architectural as well as engineering structures, accidents to the superintendents, to masons, brick- layers, roofers, and other workingmen are of frequent occur- rence. There are injuries due to falling stones, brick, or timber, falls from scaffolds or ladders, derricks and hoisting accidents. In carrying out large railroad or canal enterptises, it is usual to provide beforehand temporary barrack hospitals for the care of those who may become in any way injured or who succumb to disease. In view of the frequency of accidents in architectural and engineering works, a general course of instruction of first aid in emergencies and accidents has been introduced at all the German Polytechnic Schools. While it is true that the knowl- edge of how to render the first aid in injuries until a surgeon arrives, should be a part of every man's general education, and while it is by no means claimed that the engineer is specially qualified to render such service, the matter is mentioned here because, through the nature of his work, he is apt to be fre- quently present at, or to be brought into immediate contact with, such accidents when they do occur, and it is desirable that he should in such emergencies know what to do to make the injured person as comfortable as possible until medical aid arrives. The engineer should, therefore, know the rudiments of anatomy and physiology of the human body, and be conver- sant with fractures, sprains, dislocations, contusions, crushes and lacerations, and bleeding or poisoned wounds. He will meet cases of torn limbs, of splinters, wounds, and hemor- rhages, sun and heat-strokes, frostbite, foreign bodies in the eye, as well as cases of drowning, of suffocation with smoke 14 or illuminating gas, or bad gases at the bottom of wells or vaults. He may be called upon to treat burns, scalds, or in chemical works cases of eschars or poisoning. He should also be familiar with the extemporized means of transporting in- jured persons, when accidents occur in places far away from doctors, as in surveys in the woods, in the climbing of moun- tains, on the ranches in the far West, on board of ships or trains, or in mines. No one has done more efficient service in popularizing this useful knowledge than Professor Esmarch, who founded the German Samaritan Society, and in February, 1882, delivered his first course of lectures on first aid to the injured, which have since then been time and again repeated by others. In Vienna a Volunteer Aid Society was founded a day after the terrible fire of the Ring Theatre, on December 8th, 1881. In England valuable work is being done by the St. John Ambulance Association, founded by John Furley, Esq., and in Scotland a similar society exists and is known as the St. Andrew's Ambulance Association. In New York City the Society for Instruction in First Aid to the Injured was founded many years ago, while in Brook- lyn a similar society, known as the Red Cross Society, is doing excellent work. It is a matter of gratification to record the fact that, after the formation of a United States Committee of the Inter- national Red Cross Society, whose work was until then con- fined to civil aid on the battle-field and in the war hospitals, it was proposed and advocated, largely by Miss Clara Barton, that the usefulness of the Red Cross Society might be in- creased by relief work in cases of calamities other than war. This accepted amendment to the constitution of the Red Cross Society is known as the " American amendment," and by it the aid of the society is now extended to sufferers by flood, pestilence, tornadoes, and other great disasters in civic life. RECENT PRACTICE 9 IN THE Sanitary Drains® of BiiMis, WITH MEMORANDA ON THE COST OF PLUMBING WORK, BY Wm. Paul Gerhard, C. E Consulting Engineer for Sanitary Works, New York City. Second Edition, 18mo, Bound. Price Fifty Cents. CONTENTS. Architecture and Sanitation. Recent Progress in House Drainage and Plumbing. The Drainage of a House. Maxims of Plumbing and House Drainage. (a) Rules regarding Location of Plumbing Work in Dwellings. {b} Rules regarding Proper Construction of the Work. (r) Rules regarding the Proper Care and Manage- ment of the Work. Memoranda on the Cost of Plumbing Work. Suggestions for a Sanitary Code. The Maxims of Plumbing and House Drainage con- tain in 48 pages all the requirements of a Complete Plumbing Specification, and will be found a very useful help in preparing a detailed specification for the plumbing work in all classes of buildings. D. VAN NOSTRAND COMPANY, Ipubltebers, 23 Murray and 27 Warrren Streets, N.Y. *** Copies sent by mail on receipt of price. Third Edition, cloth bound. Price, postpaid, One Dollar. A GUIDE TO SANITARY HOUSE-INSPECTION; OR, HINTS AND HELPS REGARDING THE CHOICE OF A HEALTHFUL HOME IN CITY OR COUNTRY. BY WILLIAM PAUL GERHARD, C.E., Consulting Engineer for Sanitary Works; Corresponding Member American Institute of Architects; Member New England Water-Works Asso- ciation, American Public Health Association, German Technical Society of New York, etc. AUTHOR OF " HOUSE DRAINAGE AND SANITARY PLUMBING J " " HINTS ON THE DRAINAGE AND SEWERAGE OF DWELLINGS ; " " DIAGRAM FOR SEWER calculations;" "the disposal of household wastes;" "SANITARY QUESTIONS "THE PREVENTION OF FIRE " sanitary drainage of buildings ; " " THE DRAINAGE OF A HOUSE ; " " DOMESTIC sanitary appliances;" "gas- lighting AND GAS-FITTING," ETC., ETC. CONTENTS. Necessity of Sanitary House Inspection. "Skin" Buildings. Essentials of a Healthful Home. Inspection of City Houses: Surroundings and Soil, Cellar, Yard, Structural Details, Sewer- age, Plumbing, Water Supply, Garbage Disposal, Warming, Gas-Lighting, Ventilation, Bad Odors, Prevention of Dust, Safety Against Fire. Apartment Houses. Inspection of Tenement Houses. Inspection of Country Houses: Choice of Site, Foundations, Cellar,Walls, Roofs, Rooms, Heat- ing Apparatus, Plumbing Work, Water Supply, Disposal of Wastes. House Surroundings, Removal of Storm Water. Summer Boarding Houses and Summer Resorts. Necessity of Periodical Inspection. JOHN WILEY & SONS, Scientific Publishers, 53 East Tenth Street, New York City. 1895. NOTICES OF THE PRESS. "The special points insisted upon are calculated to give us healthier homes."-Scientific American. "Like all Mr. Gerhard's books on sanitary subjects, this one can be highly commended."-Manufacturer and Builder. "The text is clear, concise and sufficiently brief to be read through at a single sitting."-N. Y. Medical Times. "The book is admirably written, the style being simple and clear, and the subject being presented in an interesting manner throughout." -Inland Architect. "The eminent character of the author for thoroughness and intel- ligence in the treatment of this subject guarantees an excellent work, as, indeed, it is."-Good Housekeeping. "Mr. Gerhard's hand-book is a timely production." -Engineering News. "Mr. Gerhard is an authority on sanitary matters." -American Artisan. "As a guide to architects, sanitary inspectors and householders, the author's little summary will be found of much service." -London Building News. "It is a small volume that gives in clear and concise language the main features of an important subject." -Northwestern Architect and Improvement Record. "What we like about Mr. Gerhard's book is its simplicity, clear- ness, terseness and practical character. The keen observation and thorough training of the author are shown on nearly every page." -Mechanics. "Mr. Gerhard is one of the best known of American writers on sanitary subjects, and a sanitary engineer of very wide experience. This book contains an unusual amount of information for its size, and ought to prove a valuable hand-book."-London Sanitary Record. "Mr. William Paul Gerhard's reputation as a civil engineer, no less than as the author of sanitary books and as a contributor to the journals of the country on sanitary subjects, is well known. His very convenient little hand-book is certainly worthy of commendation." -Sanitary News. "It is a matter of very serious importance to any one intending to occupy a dwelling to insist upon a thorough sanitary inspection of his new home. Mr. Gerhard has furnished us with an invaluable guide for this work. His work is simple in style and systematic in arrange- ment, and shows not only a thorough knowledge of the subject treated, but a familiarity with the most advanced requirements in sanitary science."-American Architect.