PLATE 6: 
Shes 
Sissre et 
tB Eta 
FHPSH WLS 
Kh AALEL He 
4 Shih SARL 
cht Bul irs 
£2 tetoke 
Eastman.—Carboniferous Sharks. 
t 
| 
BOSTON. 
HELIOTYPE CO., 
