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TUMOURS ON COWS’ KNEES AND HOCKS. 
By the same . 
As it is no uncommon thing to find large tumours on cows’ 
knees and hocks, and some young practitioners, perhaps, not 
knowing their nature or treatment, I will just give a description 
of three I found the other day on one cow: one on each knee, and 
one on the side of the off hock, and each weighing about three 
pounds. 
I opened them, and found they contained one-half serum of a 
citrine colour, and the remainder was coagulable lymph : but on 
squeezing the latter, a quantity of serum came out of it, leaving 
its texture soft and flocculent. These pieces of lymph floated 
loose in the serum in a beautiful manner from every side. The 
cysts forming them were an eighth of an inch thick, and dense, 
and their inner surface, when the radiations of lymph were 
scraped off, were smooth. 
They are quite distinct from the joint or bursae mucosae of the 
parts, and may be safely opened or dissected out. I have cured 
many by passing setons through them, after having evacuated 
upwards of a gallon out of each. It appears that they are merely 
encysted tumours, formed by pressure, it being only an effort of 
nature to protect the parts by throwing them out. Sometimes 
the secretion becomes altered, and they contain merely pus. 
Some fourteen years ago I had a very remarkable case of tu- 
mour on the knee of a cow, sent to me, weighing upwards of 
eighty pounds, and which took its origin from a similar cause. It 
was, in a great measure, bone, and was merely attached, just 
above the knee, to the radius, but reached from the shoulder to the 
foot, and projected out from the leg at least half a yard. When 
kneeling down, she had the appearance of a man standing on a 
wooden-leg, with the contracted limb projecting behind. It was 
half the size of a flour-barrel. 
WORMS IN A HORSE, SIMULATING RABIES. 
By Mr. J. D. Harrison, V.S., London. 
DUR! ng my pupillage at the College a communication was 
made to me by the late Mr. Brettargh,of Preston (with whom l 
served my apprenticeship), relative to a horse, the property of the 
late Sir H. P. Hoghton, Bart. ; and as the symptoms, in some 
measure, were analagous to hydrophobia, a short history of it 
