Charles C. Riedy, 



Dealer in 



Microscopes, Objectives ^ Accessories. 



Rli kinds o* Miei'oseopical and Biological 

 Supplies on hand oif furrnishcd to oPdetr. 



432 MONTGOMERY ST. San Francisco. Cal 



FOR EXCHANGE. 



Fragments of petrified bone of the Mastodon and Saurian, 

 plainly showing tissue, in exchange for bird's eggs. The remains 

 were recently discovered in one of the caverns of the Grand. 



Address, PAUL E. KENNEDY, 



J 



Wester 



I 



