DISEASES OB PLAN rs. 



ference from 3 to 7 n. On the whole, the morning tappings gave aboul 10 pi 

 better results than evening tappings. 



Terms used in forestry and logging- i U. S. Dept. Agr., Bur. Forestry Bui. 61, pp. 

 .',.;, map t). The various popular and technical terms used in forestry and logging 

 are defined and in many instances their equivalents given in German and I 

 The work \\;i> prepared by the Bureau of Forestry in cooperation with the Societj 

 of American Foresters. 



Forestry terms in French, English, and German, J. < it rsi mm I cabulairt 

 Fbrestier Francois- Anglais- Allemand. Paris and Nancy: Berger-Levrault 

 4. ed., pp. .'a-': rev. in Rev. Eaux et For$ts, M {1905), No. 2, pp. $8, j9). Previous 

 • •ill ions Hi' this work have been in the German and French languages. In the pree 

 cut edition the work has been enlarged to include English Eorestrj terms. 



DISEASES OF PLANTS. 



Minnesota plant diseases, E. M. Freeman {St. Paul: Tin Pioneer Press, 1905, 

 pp. XXIII $82, pi. tffigs. 211). -The author's chief aim in this book is to di 

 Date knowledge of the destructive parasites of useful plant-, to assist all concerned 

 with the cultivation of plants to a more intelligent and thorough understanding of 

 tlic habits of these parasites, and to point out established methods of combating Buch 

 diseases. Tne object of the work is educational rather than immediately practical, 

 the author thinking the practical combating of diseases will follow a better concep- 

 tion of their cause and importance. 



Alter describing fungi in general, chapters are devoted to their physiology, repro- 

 duction, etc., fungi as causes of disease, different kinds of fungi, diseases due to causes 

 other than fungi, etc. The economics of prevention and cure arc discussed, formu- 

 las for fungicides are given, and spraying apparatus described, after which specific 

 diseases are described under the heading of diseases of timber and shade trees, field 

 and forage crops, garden crops, orchards and vineyards, greenhouse and ornamental 

 plants, and wild plants. 



The author has unavoidably omitted some diseases, while others, although not yet 

 observed in the state, are included on account of their importance. A numberof 

 plant diseases are also described which are economically of minor importance bul 

 which are illustrative of certain classes of diseases that otherwise could not be treated. 



The author ha- drawn freely on experiment station literature for information 

 regarding diseases and their prevention. The work is especially commendable on 

 account of its appearance and the excellence of its illustrations, most of which are 

 new . 



A report on plant diseases of the State, J. L. Sheldon {West Virginia Sta. 

 />"/. 96, pp. 69 99, pis. 6). — Popular descriptions are given of a number of diseases 

 of cultivated plants, the information being based upon the author's investigations 

 while traveling about the State and also upon a large number of replies to letters 



sent out asking for information relative to diseases. The arrangement is alphabetical 

 hy host plants. 



Annual report of the literature of plant diseases for 1903, M. Hollri su 

 [Jahresbericht iiber dh Neuerungen und Leistungen auf dem Gebiete da Pflanzenkrank- 

 keUen. Berlin: PaulParey, 1905, pp. VIII S74).—k review is given of the literature 

 relating to plant diseases and insect injury to plants for the year 1903, which 

 includes references to more than 2,200 articles either by abstract or title. The 



arrangement of the material and method of treatment is similar to thai in previous 

 volume^ K. S. K., 14. p. ln'.M |. 



Notes on the Erysiphaceae of Washington, \Y. H. Lawreni i: Jour. Mycol., 11 

 [1905), No. 77, pp. 106-108). — A list is given of the species of powdery mildews col- 



