SuURRENT LITERAPURE: 
BOOK REVIEWS: 
Experimental morphology. 
THE second part of Davenport's Experimental Morphology, which has 
been awaited with so much interest, has recently appeared.t This part deals 
with the effect of chemical and physical agents upon growth. It will be 
remembered that there are to be two parts more, devoted to cell division and 
development. 
The general plan of treatment is the same in this part as in Part I,already 
reviewed inthis journal.2 Since the phenomena of growth have been more 
studied in plants, in which they are very prominent and yield themselves 
much more readily to analysis than in animals, the present part includes a 
more extensive discussion of plants than the first. This part, therefore, will 
have, if possible, a greater interest for botanists than the first, though the 
Whole work will be of the greatest service to them. 
A chapter is devoted to the effect of each agent which exercises an influ- 
_— Upon the rate or the direction of growth. From the chapter on chem- 
ical ‘gents, water is excluded, being given a chapter by itself. Molar agents, 
Bravity, electricity, light, and heat, are discussed in turn, and the part con- 
tudes with a chapter on the effect of complex agents on growth, and the 
Sneral conclusions, Each chapter is followed by a bibliography of the 
eae 
ore important papers on the subject treated, a feature of very great value 
‘0 students, 
Mand the book may be open to criticism in this direction. a 
Single illustration of this will suffice to indicate the form such criticism 
ke, | the author cites 
Effect of chemical 
ee hh. ; : rt Il. 
B.— Experimental morphology. Pa -509. figs. 75-140» 
sais nts on growth. 8vo. pp. xa-xb, xv-xviii + 281 
a a he Macmillan Company. 1899. $2.00. 
iv é 
189} AZ. 23: 467. 1897, 
323 
