Current Literature. 97 



The remaining 220 pages contain, of course, the more important 

 portion of the text. Under each species is given the literature, 

 followed by a description which is neither verbose nor a succession 

 of technical terms. After this is given the distribution and 

 various other supplementary data which never come to the student 

 of mere herbarium material, but only to the field man. There are, 

 of course, keys to the families, genera and species. 



Besides the text figures there are 85 full page plates. About 

 one-half of these are from photographs of tree types and forest 

 types, usually a desideratum in dendrological works. The 

 subjects of illustration are uniformly excellent, but in some cases 

 the reproduction is not of the highest quality. The remaining 

 plates are from line drawings illustrative of taxonomic charac- 

 ters. 



For a book necessarily so largely descriptive the perusal of this 

 volume affords much pleasure. The author has achieved the 

 happy result of producing an absolutely scientific work, written in 

 simple interesting language. J. H. W. 



Fungous Diseases of Plants. By B. M. Duggar. Boston, 

 Mass. 1909. Pp. 508. 



Diseases of Economic Plants. By F. L. Stevens and J. G. 



Hall. New York, N. Y. 1910. Pp. 513. 



The substantial basis on which the science of Plant Pathology 

 rests has been due in no small measure to the faithful and intel- 

 ligent efforts of such botanists as Farlow, Burrill and Smith. It 

 is now practicable to deal with it as an independent subject in 

 the classroom, and a small army of younger enthusiasts are 

 actively engaged on investigations in this field. The value of this 

 phase of botany is also appreciated by the farmer, the horticul- 

 turist, the fruit-grower, the forester. 



Strangely enough there has been a lack of American textbooks 

 and manuals on this subject. Hitherto, it has been necessary to 

 rely on European publications and on bulletins issued by the 

 various agricultural stations. It is with pleasure, therefore, that 

 we welcome two new books written by American pathologists. 

 They are conceived from somewhat different standpoints arid 

 hence should reach a wider circle of readers. 



Duggar's "Fungous Diseases of Plants" partakes more of the 

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