TO COLLECTORS 
l have a few fine, perfect specimens of Argonauta 
Argo (paper Nautilus), about 2% inches, at $1.00 each.. 
Also a large number of rare, scarce shells. - 
List submitted on application. 
x J. F. POWELL, Waukegan, n. ics 
3 MARINE BIOLOGICAL SUPPLY DEPARTMENT - $ 
Bag eee of all types of animals, = class ae 
ce | 
or the museum. For pri 
and all information, address ; c 
GEO. M. GRAY, CURATOR - - WOODS HOLL, Mass. 
DISSECTING MICROSCOPES B 
of every e e = price, suited CHE 
A new series of lenses 
for dissecting work have 
recently been perfected by 
-us which have unusually - 
long working distance and 
= ee : large flat field. These 
Lens Holder for Anatomical Work. lenses are offered. at 
in use. The new Dissecting Stands are all nickeled 
metal with glass stage. 18 Catalog free. — : Ec 
 Senph np OURAN OF APPLIED MICROSCOPY on request. io 
„BAUSCH & LOMB OPTICAL CO. 
£ OFFICE: 
ica: 2 
25th Street and Broadway, = CHEN N.Y. | Enc m 
ce d 
m ad Av Ava N per iig Si spe igh a “durable , compact. 
: a simp 
er eer 
x 
E Write for Pamphlet ; 
= FELT e TARRANT MFG. CO. eS s 
