J. GRI 



631 Sixths 



Estal 



Microscope S 

 Oil Immersion 

 ives and Abb( 

 densers for Bi 

 and Histologica 

 of Objectives, ( 

 Lucida and oti 

 cessory apparal 



W.H.WALISI 



SUCCESSOR 



K. & J. B 



1016 Chestnut St 



Microscopes 

 Accessories ; 

 paratus. Pho 

 ic and Phot 

 graphic Appai 

 Outfits. 



Spectac 1 

 Glasses, Op 

 Marine Glass 



Illustrated I 

 mailed free to 

 dress. Mention 

 in correspondin 



519 



^^' 



