'8¢$ “ALUTANO) ‘ANVLS TVOIDOTOLSIH NVOISANV 
JOSEPH ZENTMAYER, 
OPTICIAN, 
MANUFACTURER OF 
MICROSCOPES. 
— AND— 
Microscopic Apparatus, 
147 S. FOURTH ST., 
PHILADELPHIA, 
PENN. 
PGs UF == 
S (Cm 
rill 
Botanical Dissecting Microscope, complete with 
MICROSCOPES FROM $88 TO $1,000. 
CATALOGUES ON APPLICATION. 
AMERICAN STUDENT STAND, COMPLETE, $38. 
