No. 429.] NOTES AND LITERATURE. 761 
BOTANY. 

Elementary Plant Physiology. 
revised edition of the same author's earlier book, Lxferimental 
Plant Physiology, will without doubt be welcomed by the teacher. 
The experiments chosen are almost all of the simpler kind, 
being qualitative rather than quantitative, for which reason they will 
especially recommend themselves for use in elementary courses. 
In the introductory chapter is given a series of selected courses 
which will serve as useful suggestions to the inexperienced or hurried 
teacher. At the same time the number of experiments described is 
sufficiently large to allow of independent choice, so that any course 
selected from the book may have a certain elasticity — a point of no 
little importance. 
In starting out with the consideration of growth the author has 
undoubtedly chosen that phase of plant physiology which appeals 
most strongly to the average student, a fact which warrants the 
choice, when it is remembered that the object is to introduce the 
beginner to the subject. The chapters on the exchange of liquids 
and gases and on the general subject of nutrition are full and seem 
entirely adequate for the scope of the book. The wisdom of leaving 
the consideration of the effects of stimulation and correlation (the 
various trophic phenomena) to the last, in a place removed from the 
related topic of growth, might be questioned if the evident intention 
of the author were not taken into consideration. It is clearly his 
object to impress most strongly upon the student the phenomena 
connected with general and, on the whole, less complicated problems 
of plant physiology and to touch lightly upon the more intricate ones 
connected with correlations of growth. There are many reasons jus- 
tifying such a treatment in an elementary course, particularly in a 
course which presumably would not be accompanied by many 
explanatory lectures or by much reading. 
The text is terse and clear, the typography and form of the book 
excellent, both the author and publisher are to be congratulated on 
having produced a very acceptable and practically useful laboratory 
aide. HMR 
Notes.— A new botanical publication, the Recueil de /’ Institut 
Botanique ( Université de Bruxelles), has been launched by Professor 
1 MacDougal, D. T. Elementary donee Physiology. New York, Longmans, 
Green & Co., 1902. 8vo, xi + 38 pp. I gs. 
