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Image from page 143 of “Practical preventive medicine” (1920)
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Identifier: practicalprevent00boyd
Title: Practical preventive medicine
Year: 1920 (1920s)
Authors: Boyd, Mark F. (Mark Frederick), 1889-1968
Subjects: Preventive Medicine Public Health
Publisher: Philadelphia and London, W. B. Saunders company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons
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WATE.R BEARING■V-.SAND Fig. 44.—Showing how pollution may enter an improperly located and poorlyconstructed well. Most contamination of wells enters from the top. Note thedrainage toward the well. {Minn. State Board of Health.) from sewers, privies and cess pools. Underground contamina-tion may occur in clayey or gravely soils or in limestone regions,owing to the fissured or open character of the sub-soil. Shallowwells are frequently contaminated. 10. Emergency Protection in the Home.—The various do-mestic filters are of little value, as in order to give satisfactoryresults they must be cleaned frequently, at least daily, and it 10 146 PRACTICAL PREVENTIVE MEDICINE is rare for them to receive this care. They are apt to give afalse sense of security. Boiling drinking water from 15 to 20 minutes is one of thebest emergency safeguards that can be employed. Anothermethod of equal value is the employment of bleach or chlori-
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WATER BEARING^SAND OR GRAVEL Pig. 45.—Showing how a well can be protected against pollution. (Minn. State Board of Health.) nated lime. A stock solution of bleach is made by adding oneteaspoonful of fresh chlorinated lime to a pint of water. • This isadded to the drinking water in the proportion of one teaspoonfulto ten gallons, or nine drops to one quart, and allowed to actfor 15 to 30 minutes before the water is consumed. REFERENCES Race: Chlorination of Water. Stein: Water Purification Plants and Their Operation. WATER PURIFICATION 147
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Image from page 15 of “Scientific American Volume 97 Number 16 (October 1907)” (1907)
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Identifier: scientific-american-1907-10-19
Title: Scientific American Volume 97 Number 16 (October 1907)
Year: 1907 (1900s)
Authors:
Subjects: scientific american munn brooklyn apparatus feet wireless machine scientific american electric steam engine sense gum american supplements brooklyn bridge american october wireless telephone gliding flight grasping power pennsylvania railroad
Publisher:
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ADD TONE TO YOUR STATIONERY IN THE OFFICE. BANK, SCHOOL OR HOME BY USING ONLY WASHBURNES PATENT ADJUSTABLE •.;•••?- a WZJ8SBk&£n& l/.IV.. FASTENERS » There is genuine pleasure in «. tair use as well as I Easily put on ~^^ mm Perfect Security. or taken off with the thumb and finger. Can use repeatedly andthey always work- Made ! of brass, 3 sizes. Send 10c for box 50 ass Yd. j A t all stationers. Illustrated booklet fiee. The 0. K. Mfg. Co., Syracuse, N. Y. KPiB I. H. C Gasoline Engines SMOOTHRUNNING
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A line of engines adapted to the uses ot all classesof mechanics. Constructed on mechanically correctprinciples. Everywhere distinguished for theirsafety and ease of management, as well as for theirefficiency and economy. Vertical style in 2 and 3 horse-power. Horizontal (Stationary and Portable) in 4,6,8,10,12,15 and 20 borse-power. Also a 1-tiorse-power air-cooled engine. Stocks carried by I. H C. local agents at all prin-cipal points. Address home office for catalogs andparticulars. The International Harvester Company of America (INCORPORATED) 15 Harvester Bldg., Chicago, III. For Vour Dynamo
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Image from page 22 of “Boone County Recorder” (1914)
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Identifier: Boone_County_Recorder_Vol_40_1914
Title: Boone County Recorder
Year: 1914 (1910s)
Authors: Boone County Recorder
Subjects: Boone County, Kentucky newspapers
Publisher: Boone County Recorder
Contributing Library: Boone County Public Library
Digitizing Sponsor: LYRASIS members and Sloan Foundation
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icienciesare how these deficiencies can RESOURCES.Loans, Bonds, &c .. o,858.5o Overdrafts 52.81 Due from Banks 38,391.o4 Cash 7.711.Ho Banking House, &c 3,000.00 Total 0,014.15 LIABILITIES,Capital Stock $ 30,000.00 Surplus 45.ooo.oo Undivided Profits, &c 7,581,49Deposits 136,591.35 Due Banks , 841.31 Total 0,014.15 A Bank that is goincr after business, and going in theright way. yfllifO By promptne:J.,4» serving it» customers.- «- •»U By courteous attention to their banking needs. By readiness in meeting their requirements, and, above allBy perfect security of the funds intrusted to its care, having over 0,000.00 to secure depositors. ty years ago saw its need and met it;England, Scotland, France, Austria,Switzerland, Norway, Sweden andDenmark are all paying heed to It. Ifwe would successfully compete in ourown chosen: field with the-large Immi-gration yearly coming to our shoreswe must find the means to equallyeducate our own people In their voca-tions.
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ftlEN CABINET Fortunes In Sausages.Westphalia, In Prussia, is the home Rewards of Inventors.It is not always the greatest inven-tion that brings the largest financialrewards. Roller skates are said >°have brought their inventor ,000,000,while nearly half a million was real-ized by the man who Bret dcvlooo bootlaces. The Inventor of the safety pin,who took the idea from a reproduc-tion of a Pompelian fresco, says LeeNouvelles, made ,000,000. On theother hand.T Charles BourBeul,discovered and described the principleof the1 telephone In 1855, died poor.Muhaux, the Inventor of the bicycle,ended his days In the utmost penury,and Frederic Sauvage, who is creditedwith thj Invention of the screw pro-iirllerrwas Imprisoned and died bank-rupt and insane. Alabamas Iron Ore.Deposits.The boom which followed the dis-covery of tho extensive deposits ofiron ore in tho vicinity of Birmingham,Alabama, in 1882, was without prece-dent in the industrial history of thoUnited States, and the rush t
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Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability – coloration and appearance of these illustrations may not perfectly resemble the original work.
Image from page 143 of "Practical preventive medicine" (1920)
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