44 Toe Microscope. 
REVIEWS. 
GrRAyY’s BoTANICAL TEXT-Book. Volumes i and 2, Edited by Asa 
Gray, LL. D., Harvard University. Published by Ivison, Blake- 
man, Taylor & Co., New York. Sixth edition. 
Volume one is mainly devoted to Structural Botany on the 
basis of morphology. The intimate structure, development and 
function are treated only so far as is necessary to the under- 
standing of the morphology of the stem, leaves, ete. 
Volume two is devoted toa consideration of the microscopic 
structure. the development, and the functions of flowering 
plants. Considerable space has been devoted to the appliances 
and methods relating to the technique of Vegetable Histology. 
Practical exercises are also given, and the student is urged to 
perform them in order to see the results of these special meth- 
ods. The minute structure of the root, stem and leaf is given 
in clear language, and well illustrated with good drawings, 
nearly all of which are entirely new. 
The structure of the flower, fruit and seed is also given, 
thus making a complete treatise on Vegetable Histology. 
Prof. Goodale, of Harvard, is the author of this volume of 
the series. | 
Our readers interested in Botany cannot afford to remain 
without these volumes and especially the volume last men- 
tioned. 
Louis AGAssiz; His LIFE AND CORRESPONDENCE. Edited by Eliza- 
beth Cary Agassiz. Two volumss. 8vo, 400 pages each volume. 
Second edition. Published by Houghton, Mifflin & Co, Boston. 
1886. 
Doubtless every reader of this journal is familiar with the 
name of Agassiz; many of them have perused his “ Methods of 
Study in Natural History,” ‘Geological Sketches,” etc. A few 
only of our readers ever had the privilege of a personal acquaint- 
ance or association with this great man. The volumes before 
us give afull account of his writings and works, and contain 
copious selections from his correspondence. It is the most ex- 
tended biography of him which has ever been published. The 
work is written in most charming style and reads, in many 
parts, like a nove], so strange is the story of this intellectual 
