BOTANICAL SUPPLIES 
During the past year the Marine Biological Laboratory Supply Department 
has sent botanical specimens to Scotland, England, Holland, China and Canada, 
as well as to all parts of the United States. Let us supply you also. 
At the present time the following material can be suppHed: 
Marine or fresh water algae, preserved or mounted, or fresh during their 
season; fungi, representing all the important groups, for study or demonstra- 
tion; complete life cycles of four genera of mosses, and sporophytes of several 
more; several genera of ferns; seed plants such as Pine, Zamia, Capsella and 
sometimes Ginkgo and others. 
Sixty or more species of Pure Cultures of Fungi are available. 
During the past year we have worked out and put up in Riker Mounts life 
histories of Pinus, Marchantia, Sphagnum, Zamia and others; also groups of 
Mosses, Liverworts, Slime Moulds, and Lichens. These mounts are of great 
value in the class room as they can be passed around a class without being 
damaged, and with proper care will last for years. 
From October to May the Department makes shipments of live Fucus for 
demonstration of fertilization. The past fall we have made a number of 
successful shipments as far as the middle west. 
Zoological and Embryological supplies also furnished. Catalogs of all material 
and other information sent on request. Address all communications to 
GEORGE M. GRAY 
Curator of the Supply Department Woods Hole, Mass., U. S. A. 
No Botanical Library No Thorough Botanist 
Can afford not to have 
The Vegetation of The New Jersey 
Pine Barrens 
By JOHN W. HARSHBERQER, Ph.D. 
Professor of Botany, University of Pennsylvania 
This book is the result of twenty-five years' careful study of the region. 
It covers the subject from every point of view and is an important and 
permanent contribution upon one of the most interesting botanical fields 
of the world. 
There are 340 pages, large 1 2mo, 284 illustrations and a large colored 
Map. Price by mail, $5.00 
Christopher Sower Company, Publishers 
J24 North Eighteenth St. PHILADELPHIA 
Always mention the JOURNAL OF BOTANY when answering our advertisements. 
