164 Dr. J. B. S. Jackson's Dissections of a 
The heart was a strongly developed, muscular organ, not 
flattened, nor unusually broad, the apex being sufficiently 
marked, though between the ventricles there is a considerable 
groove. Ventricular portion 7 inches across the base, and 
about 5 inches long. Some muscular interlacement in ap- 
pendices of auricles. Foramen ovale closed, with very little 
of a fossa on the right, and none on the left side. Tricuspid 
valve 71 inches along the adherent edge, and well developed. 
Right ventricle 4 to } of an inch thick, and the muscular 
columns: rather coarse. Pulmonary artery 42 inches in cir- 
cumference just above the valves, and aorta 3? inches. Left 
ventricle one inch at thickest part. "The aorta dilated consid- 
erably, though gradually, towards the arch, where it gave off 
two large branches of about equal size, and afterwards a 
smaller one; all of which seemed to be distributed very much 
as in the dolphin. Intercostal plexus well marked. A large 
vein, entering the right side of the thorax between the upper 
dorsal vertebrze, was undoubtedly the azygos, as described 
by Breschet (Annales des Sc. Nat. 1834) in the phocoena. 
The lower cava received a large vessel from the lower part 
of the thorax, just before entering the auricle. 
The lungs were very tough or leathery to the feel, coarse 
in structure, and invested by a thick membrane. 
organs were pretty extensively diseased, being infiltrated 
with a light yellowish substance, something between pus 
and lymph, though nowhere hepatized, and without any 
well-marked tuberculous deposit. At the anterior inferior 
part of each lung-was a large gland, similarly diseased, great 
numbers of enlarged lymphatics being seen on the outer 
surface of the lungs going to these; several glands were 
also found in the neck and about the lungs, enlarged and 
diseased. Mr. J. Coüch, above quoted, remarks, that sped 
of the cetaceous animals taken. in England have run them- 
selves on shore; a circumstance which has been ascribe > 
with much appearance of probability, to the influence of 
sickness." Trachea, 4i inches long, and lj inches Wide; 
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