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. 
peer ae 
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 /Vite//a, as fol- 
lows: LVitella opaca, Ag.; obtusa, Allen; montana, A\\len; Blankin- 
ship, Allen; Missourtensis, Allen; flexilis, Ag.; subglomerata, A. Br. ; 
Slomerulifera, 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 
at u/s ='. ALLEN, 
10 East 36th St., N. Y- 
MEMOIRS 
+ FROM THE .., 
Department of Botany of Columbia College. 
Polygonum. Quarto, pp. 178, 85 plates. Price, $6.00. 
For copies address, 
PROF. N. L. BRITTON, 
COLUMBIA COLLEGE, NEW YORK CITY. 
