TRIASSIC FOSSILS FROM SOUTHEASTERN ALASKA 655 
both of which are definitely determined to be Triassic. This 
would suggest that Nos. 4821 and 4822 may have come from con- 
cretions rather than bowlders, and that the conglomerate has no 
very great geological significance. 
Collection No. 4823—North side of Hamilton Bay. 
Halobia superba Mojsisovics ? 
Ceratites? sp. 
Horizon, Triassic. 
The pre-Tertiary formations appear to extend northward and 
northeastward through Kupreanof Island, but no further field- 
work was done in this locality on the older formations by the 
‘present writer. 
