SCLE 
NEw SERIES 
VoL. XXXY. No. 891 
FRIDAY, JANUARY 26, 1912 SENGERICOBLES 2b Cze. 
ANNUAL SUBSCRIPTION, $5.00 
by over half a century 
of experience, és on all 
our products — lenses, 
paratus, engineering rm 
and other scientific ‘ 
instruments. 
appeal to the science teacher com- 
bining as they do optical efficiency, 
excellent mechanical construction, 
and convenience in manipulation. 
Fifty years of manufacturing exper- 
ience enable us to offer the utmost in 
quality and value. 
Schools and colleges favor our mi- 
croscope BH. It is supplied com- 
plete with 7.5x (1 1-3-inch) eye 
piece, 16mm (2-3-inch) and 4 mm 
(1-6-inch) objectives, and double, 
circular, dustproof nosepiece, with 
carrying case—Price $31.50. Mag- 
nifications are 75 and 320 diameters 
—but other eyepieces can be provided ...| 
to supply different magnifications at’ 
the same price. J 
Special prices to schools. 
Our new catalog 15A, entitled “School Equipment,” is 
now ready for distribution. A copy will be mailed free 
on request. 
EW YORK 
; field © 
Tus pooner PAUSCH ¢5 lomb Cptical C. 
WASHINGTON CHICAGO SAN FRANCISCO 
PM DOCHESTEW Ny. “@AS<rorr 
