332 The Philippine Journal of Science i»w 



Wells, Ph. D., M. D. | professor of pathology in the University of 

 Chicago and in | Rush Medical College, Chicago; director of the | 

 Otho S. A. Sprague Memorial Institute | third edition, revised and 

 reset | Philadelphia and London | W. B. Saunders Company | 1918 | 

 pp. 1-707. Cloth, $4.25, net. 



From the preface to the third edition: 



Despite the war, active investigations in the chemical problems of 

 disease have continued, even in those countries most deeply involved in the 

 conflict. Although some of the later publications of foreign countries 

 have not been directly accessible, but few have not been available at least 

 through abstracts, and it is believed that most of the literature of im- 

 portance, within the scope of this book, has been considered in its revision, 

 although the rule previously followed of quoting only from the original 

 articles has of necessity been violated in several instances. The new 

 additions to our knowledge in the three years since the second edition was 

 issued have been so numerous that it has again been necessary to reprint 

 the entire work. Several subjects have been largely rewritten, especially 

 Gout, Specificity of Immunological Reactions, Anaphylaxis, Icterus, Aci- 

 dosis, Diabetes and Uremia. New sections have been added on the Abder- 

 halden Reaction, Specificity, Chemical Basis of Growth, Atrophy, and the 

 Pressor Bases, as well as many briefer additions. 



The Principles | of | Hygiene | A Practical Manual for Students, | Phy- 

 sicians, and Health-officers | By | D. H. Bergery, A. M., M. D., Dr. P. 

 H. | Assistant Professor of Hygiene and Bacteriology, University of 

 | Pennsylvania | Sixth edition, thoroughly revised | Philadelphia and 

 London | W. B. Saunders Company | 1918 | pp. 1-543. Cloth, $3.50 

 net. 



From the preface: 



This book has been prepared to meet the needs of students of medicine 

 in the acquirement of a knowledge of those principles on which modern 

 hygienic practices are based; to aid students in architecture in com- 

 prehending the sanitary requirements in ventilation, heating, water-supply, 

 and sewage-disposal; and to aid physicians and health officers in familiariz- 

 ing themselves with the advances made in hygienic practices in recent 

 years. 



The rapid strides made in our knowledge of the entire subject of hygiene 

 has rendered such a book, based upon the more recent discoveries, almost 

 a necessity to students of medicine. 



No attempt has been made to treat the subject in an exhaustive manner, 

 the object being merely to give the general principles upon which the 

 health officer and the physician work in their respective capacities in 

 dealing with conditions which are detrimental to health or which tend to 

 improve health. 



The entire range of subjects comprising the comprehensive field of 

 hygiene has not been discussed, but all those subjects which appeared to 

 the author to be most important for those for whom the book has been 

 prepared have received the consideration which their relative importance 

 demanded. 



The metric system of weights and measures has been employed through- 

 out the work except in quotations, because this system is now in general 



