ing down for operations. The diet should be good, not of a kind to
fatten, but with a generous quantity of nitrogenous constituents which will
favor both the yield of milk and the nourishment of the fetus. Aliments
like wheat bran, middlings, etc., which are rich in lime and phosphates,
can be used to advantage, as there is a constant drain of earthy salts for
the building of the body of the calf, and thereby the danger of undue
concentration of the urine is lessened. Hard, innutritious, and
indigestible aliments, musty grain or hay, partially ripened rye grass,
millet, Hungarian grass, vetches, peas, or maize are objectionable, as they
are liable to cause indigestion or even paralysis; and corn or hay affected
by smut or ergot, or that has been spoiled by wet, overripened, and
rendered fibrous and innutritious, is equally objectionable. In the main
the feed should be laxative, as costiveness and straining are liable to
cause abortion. Roots and green feed that have been frosted are
objectionable, as being liable to cause indigestion, though in their fresh
condition most wholesome and desirable. Ice-cold water should be avoided,
as calculated to check the flow of milk, to derange digestion, and to cause
abortion. A good temperature for the drink of the dairy cow is 55 deg. F.

In the case of plethoric and heavy-milking cows of mature age and in the
prime of life, the hitherto liberal diet must be changed at the last week
for the scantiest possible fare, and the bowels must be kept open by
laxatives, if need be, if the owner would avoid milk fever. Her stall
should not incline downward from shoulder to croup, lest the pressure of
the abdominal organs should produce protrusion or abortion. She should be
kept aloof from all causes of acute diseases, and all existing diseases
should be remedied speedily and with as little excitement of the abdominal
organs as possible. Strong purgatives and diuretics are to be especially
avoided, unless it is in the very last days of gestation in very plethoric
cows.

PROTRUSION OF THE VAGINA (PROLAPSUS VAGINAE).

During pregnancy this is common from chronic relaxation of the vaginal
walls and from lying in stalls that are lower behind than in front. The
protrusion is of a rounded form and smooth, and if it embraces both sides
of the canal it is double, with a passage between. It may sometimes be
remedied by raising the hind part of the stall higher than the front part.
This failing, a t