Science . 121 .e>^! New Series Vol. LIV, No. 1387 Friday, July 29, 1921 Single Copies, 15 Subscripbion, SAUNDERS BOi Boyds Preventive Medicine Five groups of diseases are considered whose etiology warrants their classificationThese are diseases resulting from the invasion of micro-organisms; the result of fa^diet; the result of unhjgienic or insanitarj conditions of employment; the result orstate; and those transmitted from patient to offspring. These diseases are import!morbidity. Octavo of pages, with 135 illustrations. By Mark F. Boyd, , , Bacterio
Science . 121 .e>^! New Series Vol. LIV, No. 1387 Friday, July 29, 1921 Single Copies, 15 Subscripbion, SAUNDERS BOi Boyds Preventive Medicine Five groups of diseases are considered whose etiology warrants their classificationThese are diseases resulting from the invasion of micro-organisms; the result of fa^diet; the result of unhjgienic or insanitarj conditions of employment; the result orstate; and those transmitted from patient to offspring. These diseases are import!morbidity. Octavo of pages, with 135 illustrations. By Mark F. Boyd, , , Bacteriology and Preventive Medicine, the Medical Department of the UniversitCloth, net. Overton and Dennos The Health Officer This book contains the information the average Health Officer must have in order to diltehargehis duties. It tells him what to do, how to do it, and why he should do it. It describes thevarious activities in which a Health Officer engages; his relation to boards of health, physicians,social agencies, and the public; the scientific principles upon which preventive medicine is of 512
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