BOOK REVIEWS 379 



many ways. It will give her a fairly clear notion of the sorts of 

 activities that engaged early man and in his crude writings, his 

 games and music, she will recognize the sort of thing that she 

 encounters in school. Several chapters will particularly interest 

 the nature teacher, those concerning the myths about the earth 

 and man, about the sun and moon, about the stars, and the chapter 

 of some twenty-five pages on nature worship. The later chapters 

 of the book deal with the development of some of man's beliefs 

 such as his idea about the soul and future life, his belief in one God, 

 and there is a simple yet interesting chapter on various sacred 

 books. There is also given at the end of the book a list of selected 

 books on the subjects treated which will enable anyone to obtain 

 library facilities to follow up the particular phase that interests 

 him most. 



The Next Generation, a Study in the Physiology of 

 Inheritance. Frances Gulick Jewett. Pp. xi + 235. 

 Ginn&Co. $.75. 



Of all the books that have come to the author's attention, aimed 

 at giving instruction in sex hygiene and eugenics, this is by all 

 means the best for young people. The author's aptitude for 

 popularizing hygiene instruction has already been demonstrated 

 in the Gulick Hygiene Series. This is an eminently readable book 

 — more than that it is an excellent simple presentation of the scien- 

 tific knowledge that we have regarding inheritance, in so far as 

 that is needed for practical instruction intended for young people, 

 and this is the undertaking of the book. The facts are stated 

 clearly and simply, and the reader is left largely to draw his own 

 conclusions. There is no attempt to present a repulsive lot of 

 data regarding sex perversion and social impurity so that the ]3re- 

 sentation is from the positive rather than from the negative side. 



There are some statements in the book that need slight altera- 

 tion: the first paragraph on page 63 gives the impression that 

 Darwin was the originator of the idea of evolution, and on page 66 

 the first paragraph seems to indicate that he was also the author of 

 the idea that evolution has come about through use and disuse. 

 Of cour.se the idea of evolution is much older than Darwin and 

 Lamarck is an earlier cons])icuous champion of the notion of e\'()ki- 

 tion through use and disuse. In the chart, page 124, the months 



