824 Scientific Intelligence. 
ure of the hinge. This is not vane living. Mya poh tage 2 tinea 
te Americana, and the gen Cyprina are also com 
together with a large Nisea.s a _Cyeloeardia (or Venera 
allied to C. borealis (Con.), but with smaller ribs, Cardium Islan- 
dicum, and also various other less common forms. bebe frag- 
ments came from various parts of the bank, including the central 
part, in depths varying from 35 to 70 fathoms, or more. 
From Banquereau, N. 8., we received one specimen of similar 
ceived. One of these, from thirty-five fathoms, lat. 44° 30’, long. 
n 
outer banks, from off N a nearl cr e Cod, and sd 
Se constituting, in large part, the solid pais se of these 
Dats bmarine elevations. 
Although the number of sections was large, yet in no case was I 
able to find it in any of the granitic rocks, except in a sye enite 
from Columbia, and here it occurred in the ‘greatest abundance, 
and under circumstances that render its occurrence interesting. 
The syenite referred to is white in color, spotted with black, 
and macroscopically only orthoclase and hornblende are recog: 
nizable. In thin pena, however, finginclose, partes Ee 
one < Apatite are seen, and moreover calcite is found; 4 ral 
material from ani this Tock was male, and that at the tem- 
perature at w e, a reaction occurre 
between the “lion dips pr carbonate seedling in the liberation of 
carbonic acid, 
