eem POE 
F Sperm Whale and other Cetaceans. 149 
ment, and which opened into the vena porta; of course, it 
would be found in the dolphin, which was foetal; in the ` 
whale, it was nearly or quite as large as the thumb. 
The lungs consisted, each, of a single lobe, as in the three 
other specimens, and were of a regular, flattened, oval form, 
the left measuring 25 by 14 inches. The air-cells were not 
visible to the naked eye, being much smaller than in man; 
moreover, they did not communicate through the lung, but 
through one bronchus a definite portion of the lung only 
could be inflated, as in the other mammalia, the surrounding 
structure remaining quite collapsed. Neither did they so 
communicate in any one of the other subjects, except in the 
dolphin, the experiment being fairly tried in each of them. 
The fact of this communication was first noticed by Mr. 
Hunter; but he seems to apply the observation to the ceta- 
cea in general, G. Cuvier, (An. Comp. vol. vii. p. 108,) or 
rather Duvernoy, makes the same general statement with 
regard. to the carnivorous cetacea, and mentions particularly 
the dolphin and the porpoise. 
The trachea was 8 inches in length, 4 inches wide, and 
much flattened antero-posteriorly. Rings about seven in 
number, but very irregular, as in all of the other specimens ; 
Some quite broad, some narrow and running into each other: 
No membranous portion, neither was there in either of the. 
other subjects. The left primary bronchus was 6 inches long, 
right 5 inches; and, from this last, just at its origin 
rather than from the trachea, as generally observed in the 
"Placet, arose a third smaller bronchus, which went to the: 
- Pet part of the right lung. In the division of the bronchi- 
Pasa WaS nothing very remarkable; some very small glands 
| WENO" Seen in" the niacous: membrane, and beneath it were” 
; well-developed transverse fibres. E ag 
“he laryna is one of the most interesting organs in the 
2 in; being elongated upwards so as to project into the 
Cuire: hares, or internal orifice of the blow-hole, thus 
ing, for the purpose of respiration, a direct commu- 
