168 Dr. J. B. S. Jackson's Dissections of a 
i ; 
The first cavity of the stomach was somewhat heart-shaped, 
and had a marked mamillary process at the apex, though no 
corresponding depression internally. Length 8 inches, and 
transversely, at the upper part, 6 inches. Cuticular coat thick, 
dense, dead white, and much more rugous than in the œso- 
phagus. Cavity nearly full of half-digested fish and bones, 
showing that it is not a mere reservoir, as Hunter supposed. 
Second cavity, of a regular, elongated form, somewhat curved 
upon itself, 7 by 3 inches before being cut open, and very 
thick to the feel. The orifice was not far from the «esophagus, 
and admitted the fore-finger, but the outlet was considerably 
smaller; no projections about the orifice, as stated in the 
Cyclop. of Anat. & Phys. Contained only a little thick liquid. 
Mucous membrane everywhere thrown into dark red, very 
thick and prominent, longitudinal, close-set rugze, and, in cut- 
ting it across, the linear appearance was seen, which has 
been described by Sir David Brewster in the porpoise as tubu- 
lar (Cyclop. of Anat. & Phys.) ; the limit between this and 
the cuticular coat of the first stomach was strongly defined, 
but there were not the strongly marked rug about the orifice, 
described by G. Cuvier. Muscular coat thin, allowing the 
ruge of the mucous membrane to be seen through from the 
external surface, like the convolutions through the membranes 
of the brain. "The third cavity was exceedingly small, though 
as distinct as any of the rest; limits externally well marked, 
and measured 1; by 3 inches. "The orifice is amongst the 
ruge of the second cavity, a short distance from its extremity, 
and admits the last joint of the little finger, so that it can be 
passed about within its cavity ; the outlet is from 4 to 5 lines 
in diameter. Structure and feel of this and the next, thin am 
membranous. Fourth cavity, quite serpentine in form} 
inches following the curve; transversely, about 1j inch mie 
way, and 13 inch at each extremity, before being opene® ; 
outlet 2; lines in diameter. Contained little or nothing: 
Mucous membrane firm and moderately thick. = 
"Intestine, 61; feet, or nearly 14 times the length of the 
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