ULCERATED TUMOURS, &C. 425 
of the ear. Compared with the left side, these parts had lost 
their natural bulk. Among these cicatrices were found, here 
and there, little hard eminences of a rounded form—some move- , 
able and others fixed—some covered with hair, and others de¬ 
nuded. The mare carried her head more than usually stretched 
out, and she roared considerably when exercised. 
She was opened almost immediately after death. The skin of 
the head was carefully dissected off, and the channel, the region 
of the larynx, and the superior portion of the trachea, were found 
to farcied, with masses of different bulk communicating with 
each other by a dense fibrous tissue : they were of a form more 
or less round, and were covered by cellular tissue dense towards 
the exterior part and on the maxillary tuberosity, but lax in 
the deeper parts, and especially towards the larynx and trachea. 
These tumours were formed, 1. Exteriorly by an envelope 
of cellular tissue, fibrous, very white, and which made a kind 
of bed, four or five lines in thickness. 2. The other part of the 
tumour consisted of a scirrhous tissue of a somewhat en^ 
cephaloid nature: some portions were very hard and white, 
diversely disposed, and crepitating under the scalpel; the re¬ 
mainder, which was the greater part, was of a yellow colour, 
^nd less firm in consistence, 
A mass of tumours appeared opposite to the posterior part of 
the larynx, and the superior one of the trachea on the right 
side and beneath the thyroid gland. It had caused the trachea 
to bend to the left, and had penetrated between the ligaments of 
that tube as far as the fifteenth ring. The tumours which com¬ 
posed it were arranged in the form of beads, small in proportion 
as they were posteriorly situated. The whole of them weighed 
at least five pounds. 
The right parotid gland was not more than a fourth of its 
natural size, and its glandular structure was changed for an 
indurated cellular tissue, of a beautiful white colour—in some 
parts, however, still granulated like a gland, but having neither 
a glandular consistence nor hue. No traces of the parotid duct 
could be discovered, except at its very origin, where was an 
elongated cavity, sufficiently large to hold a pigeon’s egg, and 
which contained a turbid fluid, consisting probably of decom¬ 
posed saliva. 
The other salivary sl^^nds were of their natural structure. The 
lymphatic glands of the channel between the jaws had dis¬ 
appeared, or probably they had been transformed into scirrhous 
tumours. 
The right lachrymal caroncle was as large as a pigeon’s egg, 
scirrhous and encephaloid like the other tumours. At the great 
