4 Henry Holt & Co. 
Sedgwick & Wilson’s General Biology. Parr I. 
By WitL1am T. SEDGwIcK, Professor in the Massachusetts Institute 
of Technology, and Epmunp B, WILson, Professor in Columbia 
College. viii+-193 pp. 8vo. 
This work is intended for college and university students 
as an introduction to the theoretical and practical study of 
biology. It discusses broadly some of the leading principles. 
of the science on the substantial basis of a thorough examina- 
tion of two typical forms, a fern and an earthworm. 
Bessey’s Botany. ApvaNcEeD CouRsE. 
By CHARLES E. BEssEY, Professor in the University of Nebraska, 
x-+611 pp. 8vo. 
This manual offers a general survey of vegetable life, 
adapted to higher collegiate work. The first 200 pages give a 
comprehensive account of the general anatomy and physiology 
of plants, proceeding from the simplest to the most complex 
in structure. Then comes classification, with a systematic 
examination, in some detail, of all the orders; The presenta- 
tion of matter is such as to fit the book for constant use in 
the laboratory, the text supplying the outline sketch which 
the student is to fill in by the aid of scalpel and microscope. 
Bessey’s Essentials of Botany. Brizrer Course. 
xlii+292 pp. I2mo. 
A guide to beginners. Its principles are, that the true aim 
of botanical study is not so much to seek the family and 
proper names of specimens as to ascertain the laws of plant- 
structure and plant-life; that this can be done only by 
examining and dissecting the plants themselves ; and that it 
is best to confine the attention to a few leading types, and to 
take up first the simpler and more easily understood forms, 
and afterwards those whose structure and functions are more 
complex. The work contains a chapter on the gross anatomy 
of flowering plants. 
