93 
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the shells that may be produced on the coasts 
and rivers. 
IN the clusyer of islands in the bay of Pana- 
ma, there is a fishery for pearls, which are 
large and well formed, but of bad color. Ma- 
ny fine murices, and other rare shells have 
been found there. 
THE Gallipagos islands are rich in shells ;— 
it is astonishing that more varieties have not 
been brought from thence. I have received, 
through the favor of some of the captains and 
officers of whale ships, some choice speci- 
mens. 
FARTHER north we meet with no shells, until 
we arrive at Ceres Island, off the coast of Ca- 
lifornia. From this island the finest ear-shells, 
(Haliotis Splendens), have been brought: for 
