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coloration is not easy to see, this is due to the thickness of its covering
At points where the epithelium is thinner the derm appears reddish-
yellow in colour, brownish-black or marbled. There is always swelling
and infiltration of the mucous membranes and connective tissue. The
follicles and glandules of the mucous membranes are hypertrophied
and congested; their secretion is more abundant and the follicles may
open out and become ulcers.

These various lesions also appear in the pharynx, the epithelium of
which is swollen and easily detached. The pharyngeal mucous mem-
brane is congested and the seat of catarrh; it is covered with a purulent
mucus; the sub-mucous tissue is thickened and infiltrated, and the
glandules are hypertrophied. These alterations are sometimes met with,
but to a less degree, even in the œsophagus, rumen, reticulum, and
omasum. They are particularly frequently encountered in the rumen.
The epithelium is thickened and becomes detached; the mucous mem-
brane is uniformly congested or presents ecchymoses, spots, aborizations,
intramucous hæmorrhages or sub-mucous extravasations; the submu-
cous connective tissue is infiltrated and thick.

The peritoneum is hyperæmic, reddish, sometimes spotted, and con-
tains a reddish-yellow serosity. In the abomasum the lesions are very
varied and numerous; they contain a mucous material viscous greyish,
yellowish or reddish, fœtid and very rich in cellules of epithelium,
in embryonic cellules and in purulent cellules; when the product
is yellowish-red the congestion is very intense. The gastric mucous
membrane is the seat of a very pronounced catarrhal state which exists
at the surface of the membrane and in its glandules. The thickened
epithelium swollen and softened, desquamates easily, is detached
en-masse and leaves veritable plaques uncovered, which are sometimes
transformed into ulcerated wounds. These denudations of epithelium
are most marked at the summits of the folds of the mucous membranes
and in the neighbourhood of the pylorus. The derm is evidently congest-
ed; it is red, reddish-yellow, or brownish in colour. The coloration is
irregular and has often a marbled appearance, that is to say, that spots or
plaques more deeply coloured and more or less numerous are observed
on the surface of the mucous membrane. Hæmorrhages sometimes
occur under the epithelium and raise it; they may also occur in the woof
of the submucous tissue.

These various lesions (spots, hæmorrhages, etc.) are principally seen
in the vicinity of the pylorus and on the folds of the mucous membrane.
We frequently meet with sphacelated plaques in the pylorus, or conges-
tion of the mucous membrane leading to superficial or deep mortification
of that membrane in the neighourhood of the pylorus. These plaques
are more or less extensive and ordinarily few in number; they are dark
coloured, and are sometimes already in course of elimination and