Cambridge Botanical Supply Co., 
Cambridge, Mass. 
National Herbarium Mounting Paper. 
ALL ARTICLES FOR SPRING CLASSES IN BOTANY. 
New Devices in Presses, Colleeting Boxes and Herbarium Cases. 
SEND FOR NEw PRICE LIST. 
—~> EVERYTHING USEFUL TO BOTANISTS. ~~ 
WILLIAM WALES, Fort Lee, N. J., 
MANUFACTURER OF 
FIRST-CLASS MICROSCOPE OBJECTIVES. 
MICROSCOPES FURNISHED OF ALL MAKES—ZENTMAYER’S AL- 
WAYS ON HAND. INSTRUMENTS ORDERED IN NEW 
YORK CITY SENT ON APPROVAL. 
DISCOUNT \TO COLLEGES, 
———— 
CHARACEAE OF AMERICA. 
The third fascicle of the Second (systematic) part of the Characeae 
of America is ready. It contains descriptions and etchings of the follow- 
ing, to continue previous descriptions: JVite//a Leibergt sp. nov. ; mu- 
cronata A. Br.; capitellata A. Br.; gracilis (Smith) Ag. (¢ransils 
Sp. nov.) ; zenuissima (Desv.) Coss. et Germ.; pygmaca A. Br.; mt- 
nuta Allen (Alaxceana sp.nov.) ; intermedia Ndst.; and Asa Grayana 
Schaffner. Price, $1.00. Part I. (general) is out of print. A new edi- 
tion will be prepared after the systematic part shall have been completed. 
T. F. ALLEN, 
10 East 36th St., New York City- 
MEMOIRS 
« FROM THE .... 
Department of Botany of Columbia College: 
VOLUME 1. 
A Monograph of the North American Species of the Genus — - 
Polygonum. By Dr. John K. Small. Quarto, pp. 178, 85 plates. 
Price, $6.00. For copies address, ioe 
PROF. N. L. BRITTON, ee 
COLUMBIA COLLEGE, NEW YORK CITY. 
