30 
ROOM IX. 
Nat. Hist. 
CASES. 
13 & 14. 
15. 
1 6. 
TABLE 
1 . 
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 different 
marine productions. 
CRACHERODEAN COLLECTION OF SHELLS. 
In this table is deposited Mr. Cracherode’s 
valuable collection of shells. Among these some 
of the most remarkable are the following : 
Univalves. 
( Divisio?i 1.) A paper nautilus or argonaut 
shelly 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. 
* For an ample, as well as accurate, description of this curious 
animal, consult the third volume of the Mollusea, in Sonnini’s 
enlarged edition of the Works of Buffon. 
