ADVERTISEMENTS. 12 
PDX D 
oF Bp, 
w ER 
STEEL ROOFING AND CORRUGATING O0., 
me Pa é N (AA 
G Steel Roofing. Iron Roofing 
3 Corrugated Iron Roofing and Sidings 
V.Crimped & Weather Board Siding 
Conductor Pipe and Guttering 
Galvanized Iron Cornice Works 
AN 
Continuous Ready Rolled Tin Roofing 
506, 508 and 510 Cherry Street, 
m Camden, M 
Write for Prices, Samples, Catalogues, &c. 
AGENTS WANTED. 
Mention American Naturalist. 
