30 
ROOM IX. 
Nat. Hist. 
CASES 
13 & 14. 
15. 
\ 
16. 
5 are fragments of fossil bones from the Rock of 
Gibraltar. 
Fossil remains and impressions of vegetables. 
A human skull and a Roman sword incrusted, 
found in the Tiber. 
Engraved nautili and other shells : and differ¬ 
ent marine productions. 
CRACHERODEAN COLLECTION OF SHELLS. 
TABLE 
1 . 
In this table is deposited Mr. Cracherode’s 
valuable collection of shells. Among these some 
of the most remarkable are the following ; 
Univalves . 
(Division 1.) A paper nautilus or argonaut 
shell, remarkable for the slightness of its fabric, 
and the elegance of its shape. It is inhabited by 
an animal not unlike a cuttle fish, which, by 
extending a pair of membranes adhering to the 
top of its longest arms, has the power of sailing 
on the surface of the sea. 
Agate and zebra snails : one of these being 
polished appears of a beautiful rose colour. 
(Div» 2.) Cone shells; a very rich assort¬ 
ment : among these are the admirals ; the most 
remarkable of which are the orange admiral, and 
the 
