388 NATURE-STUDY REVIEW [11:7— Nov., 1915 



tographic illustrations. It would be an ideal book for a steamer- 

 chair or to read sitting cozily before the open grate after your sea 

 voyage. 



Himself, Talks with Men Concerning Themselves. Lowry 

 and Lambert. 216 pp. Forbes and Co., Chicago. $1.00. 

 This is one of a series, the earlier volimies of which Truths, 

 Confidences, Herself, etc., have been reviewed in this magazine. 

 December, 191 2. This is equally commendible. It is frank, 

 simple, explicit and sufficiently detailed — a hygiene of the male sex 

 organs and a discussion of some of the problems of fatherhood. 



Teaching Sex Hygiene. E. B. Lowry. pp. 94. Forbes and Co. 

 $.50. 

 The author beUeves in teaching sex hygiene both in the schools 

 and the home. He states the reasons for his belief and suggests 

 methods. 



Pond Problems. E. E. Unwin. 119 pp. G. P. Putnam's Sons, 

 for the Cambridge University Press. $.50. 

 This book is an admirable little outline of some of the problems 

 interesting to children that come out of a study of the animals of 

 the pond. Water breathing, the tracheal gill as a new invention, 

 locomotion, the escape of air living insects from their water Hving 

 nymphs, life histories, these are some of the subjects considered. 

 The form of presentation is quite ideal. Directions are given for 

 finding and collecting the material needed for study. Field work 

 is stimulated by apt questions and it is expected that much of the 

 observation will be done at the pond side. The material needed 

 by each child is suggested for each study. Then come a series of 

 questions to bring out the points desired. So the book forces the 

 pupil to use his senses to get at the facts. Additional facts are 

 given and each subject is summarized. The book is well illustrated 

 with photographs from life and good line drawings. It really is a 

 field and laboratory guide, an ideal nature study manual on this 

 group of pond animals. It has been produced by actual field work 

 and school experience with children studying this material. 



