NOTES AND COMMENT 349 



Miss Lucy E. Cox, of Graystoke Place Training College, London, 

 has written a brief but excellent Experimental Plant Physiology for 

 Beginners (Longmans Green and Company, 1915). The book is de- 

 voted solely to the description and discussion of some 69 experiments, 

 all of which are simple, to the point, and capable of being performed 

 with inexpensive equipment. The experiments are chiefly along the 

 familiar lines but are not without touches of originality, especially with 

 regard to the simplification of apparatus. It is unfortunate that a 

 book for beginners should allude to "the breathing of plants." The 

 usual elementary course in plant physiology is so largely concerned 

 with the mere externals of plant activity that it is well worth while 

 not to get them involved in analogies with the externals of animal 

 functions. 



Prof. Edward A. White, of Cornell University, has contributed to 

 the Rural Text-Book Series a volume on the Principles of Floricul- 

 ture (Macmillans, 1915). Every phase of commercial floriculture is 

 treated, from the construction and heating of greenhouses to the ship- 

 ment and sale of plants and cut flowers. The proper handling and 

 propagation of plants, the preparation of soil, the proper control of 

 temperatures, and the elimination of disease are among the numerous 

 topics which are treated in a thorough and scientific manner. 





