For Poisoning Herbarium Specimens, 
Air-Tight Cases for Carbon Bisulphide Poisoning 
or for Permanent Use. 
A NEW PATTERN, CAPACITY 2000 SHEETS. 
Price, $15.00. 
Another Form, Single Pigeon Holes, 85 Cents Each. 
Cambridge Botanical Supply Co. 
one > EVERYTHING USEFUL TO BOTANISTS. aes 
WILLIAM WALES, Fort Lee, N. J... 
MANUFACTURER OF 
FIRST-CLASS MICROSCOPE OBJECTIVES. 
MICROSCOPES FURNISHED OF ALL MAKES—ZENTMAYER’S AIL- : 
WAYS ON HAND. INSTRUMENTS ORDERED IN NEW 
YORK CITY SENT ON APPROVAL. 
DISCOUNT TO COLLEGES. 
CHARACEA OF AMERICA. 
The first fascicle of the Second Part of the Characeze of America is 
now ready. It contains descriptions of eight species of JVited/a, as fol- 
lows: WVitella opaca, Ag.; obtusa, Allen; montana, Allen; Blankin- 
 «shipit, Allen ; Missouriensis, Allen ; flexilis, Ag.; subglomerata, A. Br. 5 
glomeruli ifera, A. Br., with ‘fourteen full-page illustrations (eight litho- 
graphic plates and six photogravures). These fascicles will be issued | 
from time to time as plates can be prepared ; price of each part $1, the: 
actual cost, if the whole edition of 500 copies be sold. Address : 
Tre. ALOEWw, a, 
10 East 36th St., N. ¥- 
MEMOIRS : 
- FROM THE . 
Pabedan of Botany of Columbia College 
VOLUME 1. 
A Monograph of the North American Species of the Genus 
An Polygonum. Quarto, pp. 178, 85 plates. Price, $6.00. 
is For copies address, 
_ PROF. N. L. BRITTON, _ 
‘(COLUMBIA + ORE NEW YORK cry, 
