BAUSCH & LOMB OPTIGAL CO., 
MANUFACTURERS OF 
Microscopes, Telescopes, 
PHOTOGRAPHIC LENSES, 
And other Optical Instruments. 
ROCHESTER, N. Y.—531-539 North St. Paul St. 
NEW YORK—37 Maiden Lane. 
A catalogue with a number of improvements and additions in the line of 
Microscopes is in press now, and will be sent to any person interested in Mi- 
eroscopy free on application. 
BOTANICAL PAPER. 
E. MORRISON, 
PAPER WAREHOUSE, 
No. 805 D Street, Washington, D. €. 
Standard Herbarium Paper, 1114 x 1634, 25 and 30 = at $4.50 and $5.50 per 
vgenns eka ones size (1644 by 24), No. 1, 84.25: No. 2, $2. 50; No. 3, $2.00 per hundred. 
Also drying p 
AMERICAN 
MONTHLY 
MICROSCOPICAL JOURNAL; 
A periodical for all who use the Microscope, either professionally or as amateurs. 
pinneemapnnnitesing 
‘Lam much pleased with the Journat, and have reccived much valuable information.” é 
‘T learn many new things from it, and I am sure that it is the case with all who read it. 
‘The eighth volume now current. Subscription price, $1.00. 
Editor, HENRY L. bare = —- D., 
usete. Indiana, 
ites gamed RUFUS W. DEERING, 
x 630, Washington, D. C- 
