Longmans, Green, & Go's Publications. 



Practical Text-Book of Plant Physiology. 



By Dr. D. T. MACDOUGAL, Director of the Laboratories of the New 

 York Botanical Garden, Bronx Park. With 159 Illustrations. Octavo. 

 352 pages. $3.00 



The design of this volume is to place before the student a method 

 by which a working knowledge of the physiological complex of a 

 plant may be acquired. The disposition of the subject matter 

 entailed by the treatment consists, briefly stated, in the study of the 

 particular functions and properties of the organism in connection 

 with the agencies and forces which influence or initiate them, and a 

 consideration of the general processes of plant life. To this end the 

 first portion of the book, inclusive of chapters 1-7 ... is 

 devoted chiefly to the special forms of irritability exhibited by typical 

 organisms, and the second part is taken up with a more critical 

 consideration of the broader phases of the activity of the plant: a 

 treatment of the subject well adapted to the convenience of the 

 independent worker, and to the exigencies of instruction. 



" The book is intended as a guide to laboratory work. The table of 

 contents in itself is a full analysis of plant physiology, while the text 

 abounds in directions for the practical study of the different phenomena of 

 plant life, as by, or connected with, mechanical agency, chemicals, water, 

 gravitation, temperature, electricity, light, the movements of fluids, food 

 and its sources, respiration, fermentation, digestion, growth and reproduc- 

 tion. The table of contents is a programme in itself, the index is equally 

 copious, and the illustrations are numerous, so that we have an easily 

 consulted epitome of vegetable physiology, suitable not only for use in the 

 laboratory, but for purposes of general reference." Gardener s Chronicle. 



"... will be of great use to all students of Botany. The experi- 

 ments are numerous, interesting, and well explained. It is a thoroughly 

 satisfactory scientific book." Scientific American. 



1 ... a very comprehensive, though necessarily brief account of 

 the phenomena of plant physiology, together with explicit directions for 

 laboratory experimentation. Discussions of principles and laboratory 

 instructions are so interwoven that the temptation for the student to work 

 mechanically, without other end in view than to finish the experiment, must 

 here be reduced to a minimum . . . treatment and references are 

 surprisingly up to date, articles being cited which appeared only a few 

 months ago. . . . The arrangement of the subject matter is thoroughly 

 scientific, which fact, together with its general completeness and reliability, 

 should give the book a broad and constant use in laboratories where the 

 subject is taught." Botanical Gazette. 



" Throughout the book we find a clear cut and concise style which to the 

 student will prove a great boon. Particularly are the opening sections to 

 each chapter to be mentioned; they serve to properly orient the reader on 

 what is to follow. When the immense ground to be covered is considered, 

 the very complete list of experiments can but prove satisfactory, and almost 

 always well chosen. Several new contrivances, among which is a precision 

 auxanometer, will recommend themselves to the experimenter." TORREYA. 



