File:An elementary physiology and hygiene for use in upper grammar grades (1910) (14596416460).jpg

Identifier: elementaryphysio00conn (find matches)
Title: An elementary physiology and hygiene for use in upper grammar grades
Year: 1910 (1910s)
Authors: Conn, Herbert William, 1859- (from old catalog)
Subjects: Physiology
Publisher: New York, Boston (etc.) Silver, Burdett and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ms, our sci- 252 PREVENTABLE DISEASES 253 entists have been learning better each year how todestroy them and prevent them from being scatteredwhere they will do harm. As a result, the number ofcases of illness and death fromcontagious diseases has beenconstantly diminishing. If these diseases are causedby germs that pass from thesick to the well, it will, ofcourse, be possible to avoidthem entirely if we can onlyfind out how the germs arecarried and then devise somemeans of preventing it. Forthis reason we call them pre-ventable diseases. Alreadywe know so much about someof the contagious diseases thatthey could be largely, if notwholly, prevented :f peoplewould only learn a few simplefacts and follow a few simpledirections. The methods bywhich tuberculosis can befought are given in detailin Chapter XV, and mostof our contagious dis-eases could in a similar way be largely prevented ifit were only possible to get people in general to under-stand the facts. Without such knowledge people
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Fig. 80. — ComparativeDiagram. The smaller figure represents thenumber of United States sol-diers killed by bullets as com-pared with the larger figure,the number killed by diseasein the war with Spain. 254 PHYSIOLOGY AND HYGIENE will ignorantly come into contact with germs thatthey could easily avoid. Nothing is more important for health than to know thecauses of the various preventablediseases and how to avoid them.The Lesson taught by theJapanese.—The whole world wasgiven a lesson in the preventionof disease by the Japanese armyduring the recent war betweenJapan and Russia. In all pre-vious modern wars more soldiershave died of diseases than havebeen killed by bullets. But theJapanese had learned what thescientist had to teach about themethods of preventing the par-ticular diseases likely to appearin the army. They thereforesent their doctors and scientistsahead of the army, to find outthe healthy and unhealthy placesfor camps, to learn whether thewater of the streams and wells

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