BOOKS AND CUREENT LITERATURE 23 



become more exact) may be too large a share of the space. The other 

 chapters show how hazardous physiological* writing is for those who 

 are chemists but not physicists, or vice versa, or worst of all, neither! 

 The plant physicist may complain of the chapters dealing with absorp- 

 tion and transfer, the plant chemist will wish for less sanguine and more 

 exact statements regarding food-materials, food manufacture and use; 

 but on the whole the book is good, a welcome attempt to aid agricul- 

 ture by abstract knowledge and to broaden and enliven physiology with 

 the idea of usefulness. — G. J. P. 



