PG ng ay RE i 
WET AND DRY 
Cryptogamic and Phaenogamic 
PLANT MATERIAL 
collected and preserved especially 
roe CLASS. SOW. => 
Microscopes, Lenses, Cover Glasses and Slides, Forceps, Scalpels and Needles. 
“Laboratory Note Book” of high grade Drawing Paper with alternate blank 
and ruled pages. Glassware, Stains, Mounting Paper, etc. 
Cambridge Botanical Supply Co., 
CAMBRIDGE, MASS. 
Everything Useful tc Botanists. 
Living Plants and Their Properties 
By Pror. J. C. ARTHUR, Purdue University, and 
Pror. D. T. MAcDouGAL, fedford Park, New York City. 
. Atimely book of 12 chapters dealing with the special senses of plants, development of irrita- 
bility, compass plants, sensitive plants, effects of cold, growth of leaves, significance of color, com- 
Parison of plants and animals, etc., in a non-technical manner. Original illustrations, interesting, 
comprehensive and thoroughly modern. Printed on enamelled paper, 30 illustrations, 242 +8 pages- 
marginal sub titles. Handsomely bound in cloth. Postpaid, $1 25. 
Send orders to Dr. D. T. MacDovucat, Bedford Park, New York City, or to Morris anp Wi1- 
SON, University Book Store, Minneapolis, Minn. 
COMMENTS. 
dt is a collection of delightfully written essays on certain of the more important and interesting 
features of li ving plants in the broadest sense. he facts set forth are in all cases the Jatest results of 
investigationin the various lines, and the language is simple and non-technical.— Plant World 
a The book will make an admirable addition to the scientific alcove ot every pttlic library.—Prot. 
C. E. Bgssry. 
It is an interesting volume to all who care to know what science has recently discovered in the 
Physiology and pathology of the vegetable kingdom.—New York World. 
A Text-Book of General Lichenology 
With Descriptions and Figures of the Genera Occurring in the Northeastern 
United States. 
By ALBERT SCHNEIDER, M. S., M.D. 
The only modern work on North American Lichens, including a discussion of their 
Morphology and Physiology, with a special reference to the phenomena of symbiosis. 
Large octavo, 230 pages, 76 full-page plates. Price in paper, net, $3.80; in cloth, 
$4.25. Sample pages will be sent on application. 
I ag, § BLISHED BY 
WILLARD N. CLUTE & COMPANY, Binghampton, N. Y. 
