ADVERTISEMENTS. vit 
CARDS FOR MOUNTING SPECIMENS. 
| We make a specialty 
of these cards, and it 
will be to YOUR ADVAN- 
TAGE to get our PRICES 
when in need of them, 
$ We can supply them 
in any size in BLACK or 
WHITE centers, 
The Edwards & Docker Co., 
518-520 MINOR STREET, | 
PHILADELPHIA. 
