MacDougal's Experimental Plant Physiology. 



On the basis of Oels' PJJanzenphysiologische Versuche. By D. T. MAC- 

 DOUGAL, Bronx Botanical Garden, vi -j- 88 pp. 8vo. $1.00. 



A manual of elementary experiments with living plants, not 

 too difficult, perhaps, for high-school pupils who have had a 

 course in general botany. The laboratory directions are ac- 

 companied by the necessary theoretical discussions. 



W. A. Setchell, Professor in 

 University of California : It 

 seems to me to be admirably fitted 

 for an introduction to this depart- 

 ment of botany, so much neglected 

 in this country. 



Wm. Trelease, Director of Mis- 

 souri Botanical Garden : A clear- 

 ly written exposition of the main 

 principles of plant nutrition, with 

 capital experiments for their 

 qualitative demonstration. 



Macloskie's Elementary Botany. 



With Students' Guide to the Examination and Description of Plants. By 

 GEORGE MACLOSKIE, Professor in the J. C. Green School of Science, 

 Princeton, N. J. Revised, viii + 373 pp. 8vo. $1.30. 



McMurrich's Text-book of Invertebrate Morphology. 



By J. PLAYFAIR MCMURRICH, M.A., Ph.D., Professor in the University 

 of Michigan. New edition, vii + 661 pp. 8vo. $3.00. 



The object is to present concisely and intelligibly the pres- 

 ent knowledge of the structure of the various groups of Inver- 

 tebrate animals, as well as to indicate the more important 

 deductions as to the relationships of these various groups, 

 and as to the significance of the fundamental peculiarities of 

 animal structure. In order that this may be accomplished, 

 the salient features of embryology are given considerable at- 

 tention, and the phylogenetic significance of the various larval 

 forms is discussed. The forms referred to and illustrated 

 are as a rule American forms and, when possible, such as 

 are usually employed in the zoological laboratories of Ameri- 

 can colleges. 



C. O. Whitman, Professor in 

 University of Chicago : It is a 

 pleasure and a relief at last to see 

 .a book of this kind which is not a 

 miserable compilation from end 

 to end, but a thoroughly first-class 

 work, which we can conscien- 

 tiously recommend to our univer- 

 sity classes. 



C. H. Eigenmann, Professor in 

 University of Indiana : It is just 

 such a volume as I have wanted 

 to supplement the laboratory work 

 on invertebrate morphology. 



Albert A. Wright, Professor in 

 Oberlin College: It reflects the 

 spirit of the zoology of the pres- 

 ent day. 



HENRY HOLT & CO. 29 



VIII '99 



