On Vessels made of the Papirus. 535 
creatures which it serves to disclose ; colours which come and 
go at pleasure, glorying, as it were, in their subtle changes, 
passing rapidly from a lively red to aurora, to orange, to green, 
and to azure blue; a magic scene, compelling more than the 
admiration of every beholder. “ O Lord! how manifold 
are thy works ! in wisdom hast thou made them all.” 
Note. — In this, and in a preceding letter, I have charac- 
terised the Sepia, usually found in the shell of the Argonaita 
A’rgo, as a parasite; but in a late number of the Ldinburgh 
New Philosophical Journal I find it stated that the opposite opi- 
nion has been satisfactorily proved by Professor Stefano delle 
Chiage of Naples, who has an engraving which exhibits “ in 
embryo, within the ovum, the rudiments of the shell in which 
the animal lives.” I must, however, acknowledge that I am 
still sceptical on this point ; but I will here state, in the shortest 
manner, the arguments for both opinions. 
NoN-PARASITICAL. 
1, The Sépia is connected to the 
PARASITICAL. 
1. The Sépia has no organic or 
muscular connection with the shell. 
Aristotle, Cranch, Poli. 
2. More than one species of Sé- 
pia inhabit the same species of 
shell. Bose. 
3. The outward markings of the 
animal do not correspond with the 
sculpture of the shell. Blainville. 
4. The ovum contains no trace 
of a shell (Bauer, Roget); nor is it 
contained in a chambered nidus. 
Home. 
shell by a ligament. Blanchard. 
2. No animal but the Sépia has 
ever been found in the shell which 
is common. 
3. The animal, when fresh, pre- 
sents upon its cloak the exact form 
of the shell, and the impressions of 
the grooves and tubercles with which 
it is ornamented. Ferussac. 
4, The construction of the shell 
is entirely conformable to the organ- 
isation of its inhabitant. Ferussac, 
Blanchard, Cuvier. 
The ovum contains the shell in 
embryo. Duverney, Poli, Blanchard. 
The evidence is so contradictory that there seems no alter- 
native but to conclude that the shell has been formed by one 
Cephalopode, its proper inhabitant; and is occasionally occu- 
pied by another Cephalopode, its parasitical tenant. 
I am, Sir, yours, &c. 
G. J. 
Art. X. Farther Illustration of Observations on Vessels made of 
the Papyrus. By Joun Hoae, Esq. A.M. F.L.S. &c. 
Sir, 
On perusing Captain Robert Mignan’s Travels in. Chaldea 
I was struck with his descriptions of several kinds of vessels, 
