

|TME BOOK SHELF ^ 



Human Physiology. A text-book for High Schools and Colleges. By Percy G. 

 Stiles, Assistant Professor of Physiology in Harvard University and 

 Instructor in Physiology and Personal Hygiene in the Massachusetts 

 Institute of Technology, Boston. i2mo. of 405 pages, illustrated. 

 Philadelphia and London: W. B. Saunders Company, 1916. Cloth 

 $1.50 net. 

 Professor Stiles has given us another admirable text book quite up to the 

 standard of his Nutritional Physiology, and The Nervous System and its Con- 

 servation. This volume on Human Physiology is one in which we may study 

 ourselves and find interesting reading on every page. Professor Stiles has the 

 unusual gift of writing entertainingly without sacrificing clearness or concise- 

 ness. The book begins with the right sort of a dedication: "To My Father, 

 Edmund Ely Stiles, a Dauntless Optimist," and there follows a few pages of 

 practical suggestions to the teacher. This is followed by chapters giving an 

 outlook over the field and a brief discussion of plants and animals. After the 

 chapters given to the usual subjects in human physiology, there follow import- 

 ant and interesting chapters on metabolism, the excretions, the requisites of 

 diet, the hygiene of nutrition, the maintenance of the body temperature and 

 internal secretions. The book is truly educational, — it teaches in a simple, 

 straightforward and interesting manner what the human body is, what it is 

 for, and how to manage it. 



Our Dooryard Friends. Sara V. Prueser. Published by The Platform, the 

 Lyceum and Chautauqua magazines, Steinway Hall, Chicago. 204 pages. 



This is one of the intimate friendly books written about our common birds. 

 It is chatty and pleasing in style and puts the reader in the proper frame of 

 mind to observe for himself the interesting performances of his dooryard friends. 

 The volume includes notes on the habits of more than thirty bird species and 

 here and there gives a chapter evincing deep feeling and appreciation of the 

 changing beauty of the seasons. The author made her observations in the 

 region of the Maumee River and in her preface states, "Little less than a cen- 

 tury ago, Henry Rix bought a tract of land for which he paid the government 

 $1.25 per acre. It is on this old tract, a part of the original Northwest Terri- 

 tory, from which nearly all the observations, reported in this volume, have 

 been made. 



In writing these sketches, my purpose has been to interest both young and 

 old in the life and beauty of the out-of-doors. And in endeavoring to do this, 

 no effort has been made to contribute anything to science but I merely tried to 

 tell the truth as I saw it. If others in their observations of out-door life should 

 verify these truths the writer's happiness will be all the greater." 



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