80 



canadensis fiavifiora, Oenothera grandifiora, Raimannia laciniata, 

 Kneiffla pratensis, Bidens aristosa, and Artemisia caiidata. 



Notwithstanding occasional discrepancies of the sort j ust noted 

 which seem to have crept into the text, this work must be 

 regarded as a noteworthy contribution to the phytogeographical 

 literature of eastern North America, and one which will find a 

 wide range of usefulness. The manner of presenting the subject 

 matter is in some respects unique, while the attempt which has 

 been made to correlate plant distribution with external factors 

 and to outline the distributional trends of various species will 

 encourage further investigation along these lines. 



George E. Nichols 



Kraemer's Applied and Economic Botany* 



A book so ambitious in scope, attempting to appeal to such a 

 large constituency, raises one or two .questions the answers to 

 which depend on the viewpoint more than they do on the facts of 

 the case. Is it possible to make sufficiently intensive the treat- 

 ment of any one of the subjects, which must at the same time be 

 so presented that it will make a general appeal to all the readers 

 to whom the book is addressed. Conversely, are the different 

 classes of readers so diverse that any attempt to cater to all of 

 them must end in such a general treatment, that the specific 

 requirements of some group of specialists, chemists for instance, 

 can not be met? The difference of motive here is obvious, and 

 the compromise that Professor Kraemer has made of a difficult 

 situation is, on the whole, a very satisfactory one. 



The book has been divided into eight chapters, the headings to 

 which are significant of the importance that Professor Kraemer 

 has seen fit to give to each subject. The chapter-headings are 

 as follows. I. Principal Groups of Plants (pp. 1-133), II. Cell- 

 contents and Forms of Cells (pp. 134-297), III. Out and Inner 

 Morphology of the Higher Plants (pp. 298-429), IV. Botanical 



* Kraemer, H. Applied and Economic Botany: Especially adapted for the use 

 of students in Technical Schools, Agricultural, Pharmaceutical and Medical Colleges, 

 and also as a book of reference for chemists, food analysts and students engaged in 

 the morphological and physiological study of plants. Ph. 1-806. fig. 1-424. 

 (including 2 colored plates). Published by the author. For sale by M. G. Smith, 

 145 North Tenth Street, Philadelphia. 1914. Price $5.00. 



