siaegad & LOMB 
BH 4 
MICROSCOPE 
a Wher i cones eee) ETR¢ RO POLITAN 
Sea eens es , SWEET 
yi, to be considered—einc a 
Re es Se » CHOCOLATE 
convenience of manipulation, 
durability and general ap- tae H (GH EST 
IN 

pearance. 
. Our BH 4 Microscope | QUALITY 
S a ee ill stand the test of all these af || 
qualities, and is eis be fo sedesel taeare | eee |i s M 0 OTH N E 5 S 
it has been on trial. a pa BND 
@ Descriptive price list on request. “8 ‘ oa nF E A 0) 0 K 
<sitoy, Our Name on a Photographic Lens, 
=) Microscope, Field Glass, Laboratory Ap- 
8 paratus, Engineering or any other Scien- 
Ren tific Instrument is our Guarantee. 
Bausch €4 lomb Optical ©. 
WEW. YORK ‘WASHINCTON CHICAGO SAN FRANCISCO 
LONDON ROCHESTER. NWN. FRANKFORT 


Refracting and Reflecting 
Astronomical ‘Telescopes 


Standard and Portable 
Visual and Photographic 
OBJECTIVES 
Computed by our associate 
DR. F. R. MOULTON 
(Chicago University) 
OBSERVATORIES 
Specula, Planes, Eyepieces, etc. 
Photographs and Circulars on request 
Pee \ | © LOHMANN BROS. 
llustration shows 5-in. with pneumatic clock. GREENVILLE, OHIO :: ss UL S. Aa 

