24 
those which fell into the Author’s hands, in 
less than a year, he paid above 100/: they 
were generally brought to him by sailors be- 
longing to ships that went there for seal skins. 
It may be remarked, that the lepas of these 
seas, as well as many of the other shells, differ 
from the same species in the Atlantic, particu- 
larly the limpets, muscles, and clams. 
ST1Lu farther north, with the exception of 
some rare trochi and muscles from Nutka 
Sound, no shells of any interest have reached 
this country. 
IN crossing the Pacific, the Sandwich islands 
are frequently visited; the shells from whence 
are in great request. This cluster ifliirround- 
ed by large coral rocks, amongst which is a 
fishery for the Beche de Mar, (Sea Grub), 
for the Chinese market. A ship lately from 
