BOOK REVIEWS 41 



assists greatly to this end. The material is arranged to fadlitate the diagnosis 

 of diseases and it will be found to be very useful for owners of shade and 

 ornamental trees as well as those interested in large timber tracts. 



The book includes chapters on the injuries, diseases and their remedies, 

 aflEecting seedlings, leaves, bodies, branches, and roots of trees in general; 

 and to the specific diseases of the alder, arbor vitae, ash, bald cypress, bass- 

 wood, beech, birch, buckeye, butternut, catalpa, cedar, chestnut, elm, fir, 

 hackberry, hemlock, hickory, jimiper, larch, locust, maple, oak, pine, poplar, 

 spruce, sycamore, walnut, willow. 



Peach Growing. H. P. Gould, Pomologist in charge of Fruit Production 

 Investigation, Bureau of Plant Industry, U. S. Department of Agricul- 

 ture. Macmillan Company, New York. 426 pp., illustrated, $2.00. 



This subject is treated by a man who has had a wide experience in fruit 

 production investigations and has dealt with many questions through an 

 extensive correspondence, and so he is able to offer in this book in a practical 

 and comprehensive manner the results of his experience and investigations. 

 It will prove a helpful resource to the experienced peach grower and those 

 interested in the industry. 



The book deals with the history, economic status, extent of the industry, 

 orchard site and location, propogation, planting, orchard management, 

 tillage, inter-planted crops, fertilizers, pruning, insect and disease control, 

 thinning, irrigating, temperature, annual cost factors, varieties, botany and 

 classification, picking and packing, transportation, storage and marketing. 



Key to American Insect Galls. E. P. Felt, New York State Museum Bulletin, 

 Albany, N. Y. 

 Seldom has a State scientific publication had so much of value in it for 

 Nature-Study teachers as has this. The galls constitute a most interesting 

 phase of life for nature-study. These little houses of magic are more wonder- 

 fully made than those created by the genii of Aladdin. There are so many 

 species that it has heretofore been almost impossible to identify them to any 

 extent. Now, with the help of this admirable key we may unlock the doors to 

 a wider knowledge. The illustrations are many and exceedingly good. Dr. 

 Felt has done a great work for us and we are grateful. 



