THE ZEISS EPIDIASCOPE 
is the most successful lantern for the projection of both 
opaque objects and lantern slides. Photographs, book 
illustrations, leaves, flowers, dissections, etc., are bril- 
liantly shown on the screen in their natural colors. 
The instrument should be in every well-equipped biologi- 
cal lecture room. Full particulars and prices on request. 
THE SCIENTIFIC SHOP 
ALBERT 8. PORTER 
Scientific Instruments 326 Dearborn Street, CHICAGO 
G. H. STOELTING GO. 
31-45 W. RANDOLPH ST., CHICAG 
THE Reflecting 
eens ~ Lantern 
BOTANICAL APPARATUS and SUPPLIES 
MORPHOLOGY-PHYSIOLOGY-ECOLOGY 
SPECIALTIES: 
and the iged to sh nd one to the other 
yy, @ also main v4 any electric may be gases 
manufacture Projecti oy a orcaee opes, Project- 
dg ectroee opes Bae Sr mtere & rm Biidos to ibnetrate E eaate 
list 
wi LLIAMS, BROWN & & EARLE, 
Dept. 24, 918 Chestnut St., Philadelphia. 
POTOMETER, Phe os AUXONOMETER, WARDIAN 
CASES, CLEMENT'S PHOTOMETER, Etc. 
