70 • BOOKS AND CURRENT LITERATURE 



The illustrations are noticeably few in number, but those used really 

 illustrate. The treatment of human physiology and hygiene seems 

 specially weak on the experimental side, where there are so many valu- 

 able observations and experiments, many of which may be made at home. 

 This, of course, brings up the whole question of the advisability of 

 sandwiching in laboratory directions and text for reading. Such is the 

 authors' plan, and the reviewer is sorry he cannot pronounce it good, 

 Many others can and do, however. 



To state the points -that the reviewer (and, he believes many others 

 with him) would designate as giving a peculiar and almost unique value 

 to this text would occupy much more space than has already been con- 

 sumed. But these points the authors will not want to change in their 

 second and subsequent editions. The other points we hope they will 

 wish to change. In their treatment of spontaneous generation (e.g., 

 p. 347), of the physiological effects of alcohol, of mammalian reproduc- 

 tion, and of the present status of knowledge,- — that is, that there is yet 

 much to be found out (e.g., p. 94), — the authors are specially sane and 

 sound. The experiments with yeast (pp. 268, et seq.) are most admirable. 

 Since the authors' chief interest is zoology, we have no doubt but that 

 their treatment of Parts III and IV, only incidentally referred to in this 

 review, will be considered even more successful than that of Parts I 

 and II. 



The book is remarkably free from typographical errors, the style is 

 clear and attractive, and, although there is not any such word (in this 

 sense) we may quote from a host of publishers' advertisements and say 

 that this book is unusuallv "teachable." — C. S. G. 



