An Indispensable Book for Students of Botany 
Methods in Plant Histology 
SECOND EDITION—ILLUSTRATED 
By CHARLES J. metre irene 
Instructor in ae n the University of Chicago 
HIS BOOK contains directions se collecting and preparing plant material 
for microscopic investigatio £3 sed upon a course in botanical micro- 
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technique, and is the first complete manual to be pu ublished on this subject. 
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method are treated in detail. In later chapters specific directions are give 
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methods, and the use of the microscope. These changes and additions have 
enlarged the volume cn 168 to 272 pages. 
272 pp., 8vo, cloth, net, $2.25; postpaid, $2.39. 
THE UNIVERSITY OF CHICAGO PRESS 
AMERICAN MEN OF SCIENCE 
A BIOGRAPHICAL DIRECTORY 
EDITED BY J. MCKEEN CATTELL, 
Professor of Psychology in Columbia University; Editor of Sczence and of The "Popular Science Monthly 
There are i Sacheded % in the directory the records of more than ile goncned men of science, 
and it ts believed a the pes _ tolerably complete for those in Nort, we car- 
who ha 
ried on research work in ei natural and exact sciences. It was aa: that f back entry should 
contain fan shies tion, as “ low. 
(1) The full name with t q dd the part of the name ordinarily omitted 
im correspondence b cing tn + setae (2) The department of investigation given tn 
ttalics. (3) The place and "yd Ff = rth, ) Education and degrees, (5) Positions with 
date. es; the present posttion bet nm in one (6) Temporary and minor positions. 
onora 2 oth aff hono a aot in nc. and | learned 
pit ie ¢ @) Chet subjects of research, th 
those in progress 
te fooes yar edited with great care and is believed to be as complete and accurate as any 
book of the. character. lt is well printed on all rag paper made expressly for the book and is bound 
in buckram with leather label. 
Price: $5.00 ze?t, postage paid. 
The SCIENCE PRESS, *$2:°3.3 cy. 
