BOOK REVIEW 307 



There are successive chapters on photosynthesis, the morphology 

 and ecology of leaves and stems, respiration, metabolism, proto- 

 plasm, roots and absorption, irritability, reproduction, pollination, 

 gro\\i:h, etc. Most of the subject matter deals with the higher 

 plants, though in such chapters as those on reproduction, growth, 

 etc., some attention is paid to the lower fonns. 



The book is a very readable one, clear in its style and emphatic 

 in its statements, and even the lay reader must feel that he has a 

 fairly clear notion of the life activities of the plant on its comple- 

 tion. One is rather disappointed to find so little space given to 

 plant breeding and the laws of inheritance, which seems to occupy 

 a relatively important place in current biological literature. The 

 book is quite up to the standard already set by other volumes in 

 this American Nature series that Henry Holt & Company are 

 getting out. 



Bird Study Note Book by Clara Cozard Keezel, single copies 27 

 cents postpaid, discount for quantities. 



This book is the outgrowth of Mrs. Keezel's teaching and is 

 characterized by directness and simplicity. There is room in it 

 for the common name of the bird, the date of its arrival, whether 

 it is migratory or resident, a note on its conspicuous colors and 

 markings, its principal food, the kind of nest which it builds and 

 the location of the nest. 



The pledge on the first page, directly above the name of the pupil 

 is perhaps one of the most important features of the book. The 

 pledge is the one suggested by Professor Clifton Hodge: "I 

 promise to do all I can for our native birds, by treating them with 

 kindness and providing them with food, water, and homes." On 

 the last page there are very practical suggestions for bird study. 

 In fact, the whole book bears the stamp of practical experience. 



