THE MICROSCOPE. 125 
BOOK “REVIEWS. 
Tue Psycuic Lire of MIcko-oORGANISMs; a study in Experimental psychology. 
By Alfred Binet; translated from the French by Thomas McCormick. 
Chicago: The Open Court Publishing Co. Pp. 120. 
This exceedingly interesting and unique contribution to the 
development of instinct in the lowest forms of animal life, opens up a 
new field for thought and observation, and will doubtless stimulate 
many to renewed investigations. In the nine chapters which com- 
prise this work, the motory organs and organs of sense, nutrition, 
the psychology of nutrition, colonies of unicellar organisms, the psy- 
chology of proto-organisms, fecundation, etc., are treated of in a clear 
and comprehensive manner. While some may differ from the con- 
clusions of M. Binet, no one can fail to be interested and instructed 
by the perusal of his essay, and Mr. McCormack has rendered a real 
service in placing it within the reach of English readers. The micro- 
scopist who desires to keep abreast of the thought of the day, should 
not fail to read M. Binet’s book. 
Tue EssentTiaLs oF Hisroioey, Descriptive and Practical. For the use of 
Students. By E. A. Schiifer, F. R.S. Cloth; pp. 245. Price, $2.20 
Lea Bros. & Co., Philadelphia. 
In this work, the author gives directions, by means of which 
the student can take a systematic course in histology. The book is 
divided into forty-two lessons, each one of which may be supposed 
to occupy a class from one to three hours. Full instructions are 
given as to the best methods of preparing specimens for examina- 
tion, and this is followed by a description of the tissue thus 
prepared. The methods employed are of the best, and the 
histological descriptions are conservative and clearly put. The 
book is profusely illustrated. Many of the cuts are new, and yet, 
fortunately, not a few of the old masterpieces are to be found, 
without which no work on the subject could be perfect. We have 
been familiar with the work from the time of its first issue, and 
have found it to answer well the needs of the students to whom we 
have recommended it. 
PopuLaR ScrENCE Montuiy. Vol. XXXIII. 
The index of the last volume of this excellent journal shows that 
it has lost none of its excellent qualities since the death of Prof. 
Youmans. The intelligent reader of the day here finds a mine of 
knowledge from which to draw inspiration. 
AN INTERESTING SPECIMEN OF Tania SacinaTa. By Frederick Tuckerman. 
Reprint. 
