THE AMERICAN BOTANIST 11 



Howard Rankin. It contains 36 chapters dealing with all 

 the ills that trees are heir to, most of which are of fungus 

 origin, though injuries from sun, frost, smoke, gas, lichens, 

 etc., are included. The first four chapters deal with the 

 general injuries that may afflict the seedlings, leaves, stems 

 and roots, respectively. Then follow chapters devoted to the 

 diseases of different groups of common trees, arranged alpha- 

 betically. In this list the pine leads with !}> different diseases, 

 though the oak with 19 is a good second. The cause of each 

 disease is given, the damage it does is discussed and the con- 

 trol methods, when such exist, are described. Final chapters 

 are devoted to tree surgery and the preparation of sprays, 

 spraying and dusting to prevent disease. There are many 

 illustrations from photographs and a list of the literature re- 

 ferred to is given at the end of each chapter. The book con- 

 tains 400 pages and costs $2.50. 



"The Manual of Vegetable Garden Insects" by C. R. 

 Crosby and AI. D. Leonard, both of Cornell University, is an- 

 other volume in the Macmillan series of "Rural Manuals." 

 Like the other volumes this one gets down to business at once, 

 starting on page 3 with an account of the 22 kinds of insects 

 that make a specialty of grafting on the cabbage and its rela- 

 tives, not forgetting to mention 62 other kinds that occasion- 

 ally take toll of such crops in a way to make a German fear 

 for the safety of his national flower. The insects that bother 

 beans and peas, melons and cucumbers, potatoes, tomatoes, 

 corn and many others are described in separate chapters and 

 then comes a chapter on cutworms that fully explans where 

 our young tomato and cabbage plants go. No fewer than 25 

 kinds of cutworms are mentioned, each one worse than the 

 others. Other chapters describe the multitudinous varieties 

 of blister beetles, flea beetles and numerous other unclassified 

 pests. The closing chapter is devoted to insecticides, though 

 all through the book, hints are given under the head of "con- 



