(24) 
Madreporites,—fragments of the vertebral column,— 
Serpule, and Trochites, in this place. In conclu- 
sion, I would particularize a beautiful variety of 
branched coral, in a red, calcareous, sand-stone, con-_ 
taining many minute, white, bivalve shells, all about 
the same size, and forming together a very interest- 
ing specimen. To these may be added, an abun- 
dance of fragments of Animal Remains, to which I 
cannot give any name. 
Before leaving Mount Wise, however, I would 
mention, that shells in situ may be seen at any time, 
and without difficulty, ina part of the rock that 
is uncovered, a little to the East of the Battery, 
and not far from the pathway leading from the Port 
Admiral’s house, to the Navy Stairs, below. But, 
these are of a harder texture, retain less of their 
original character and shelly appearance, than those 
on the other side of the hill, and having a greater 
affinity or resemblance to the matter in which they 
are embedded, may very properly be called casés.*- 
*—By the term casts, I mean, where the original substance has been removed 
by decomposition, and its place filled by the infiltration of the surrounding matter. 
