270 MR. youatt’s veterinary lectures. 
tion at the valves of those absorbents. Carefully examine this 
splendid specimen. There are hundreds of chancres on the sep¬ 
tum ; but where do you find them ?—Precisely along the course 
of the main venous, and consequently absorbent, trunk. If they 
deviate from this situation, it is in lines, following the course of 
the smaller vessels. It is a disease of the absorbents,—it is 
farcy; but now confined to the Schneiderian membrane, and, 
while so confined, continuing to be designated by the term glan¬ 
ders ; when spreading to other parts of the frame, acknowledged 
to be true farcy. They are, I say, different stages of the same 
disease. If I were compelled to point out the precise line of dif¬ 
ference between them, I should say that glanders was inflamma¬ 
tion of the membrane of the nose, producing an altered and poi¬ 
sonous secretion, capable of communicating the disease to other 
horses, and to the malignant influence or effects of which the 
lining membrane of the absorbents was peculiarly sensible; and 
that when sufficient of this vitiated secretion had been taken up 
to produce inflammation and ulceration of the absorbents, farcy 
was established. Glanders has reference to the membrane of 
the nose, and farcy to ulceration of the absorbent, produced by a 
virus discharge from that membrane. They may both be said to 
be local; but, under the second form, so extensive a surface is 
diseased that the constitution is speedily undermined. 
Its progress is occasionally very capricious,—as slow or as 
jrapid as we used to say glanders was; continuing in a few cases 
for months and years, the vigour of the horse remaining unim¬ 
paired, and at other times running on to its fatal termination with 
a rapidity perfectly astonishing. 
Diseases resembling Farcy — Sprain .—There are some diseases 
that bear more or less resemblance to farcy, and from which it is 
necessary that you should be able readily to distinguish it. You 
would hardly confound it with inflammation from sprain. This 
is too circumscribed, too plainly connected with the joint or the 
tendon—the heat and the tenderness referable principally to 
some particular spot. 
Grease and Swelled Legs .—It resembles more the enlargement 
of the limb from grease, or from inflammation of the cellular tex¬ 
ture of the leg. You will generally find some connexion with 
grease more or less apparent or occult—some crack or scurfiness, 
—or if not, there is a peculiar tenseness and redness and glossi¬ 
ness of the skin, and ichorous discharges, and most peculiar 
catching up of the leg, so that sometimes the animal throws him¬ 
self fairly off his balance, and falls upon, and sadly injures and 
bruises the incautious attendant. This swelling may be very 
sudden,—it may reach to the hock, and even to the thigh, but it 
