ADDITIONAL OBSERVATIONS ON COW-SPAYTNG. 
89 
and its envelopes.” But the quality of the milk is reported 
to be about one half richer in castrated than in pregnant 
cows, the latter yielding only from forty to eighty parts of 
cheese and butter in 1000 of milk, while the proportions of 
the above were 117 to 150 in the former. The difference 
in the quantity of milk from spayed cows is computed to 
be proportionably as great when the prolonged period of 
lactation is reckoned on, and the increase in the daily 
secretion. 1st. According to the French ricochety mode of 
reckoning, a cow fattened while pregnant gives in nine 
months 2970 quarts of milk, which ceases to flow during 
the three succeeding months, when the fattening process is 
completed. 2nd. The cow that is not covered will give milk 
for fifteen months, and is then fit for the butcher, and will 
yield during that time 4050 quarts. 3rd. The castrated cow 
is fat by the eighteenth month, and gives in that period 6750 
quarts ; and in proof of the extreme nicety of calculation of 
the quantity given in the course of the lactary process, the 
following table, taken from Mr. Gamgee’s paper, will show 
the allocation : 
For 12 months 15 quarts per diem 
55 c 
r 
’ 55 
i 
P* 
55 
55 ^ 
> » 
0 
55 
55 
55 
5400 quarts. 
900 
450 
55 
15 
Total. 
Quarts 6750 
Such wonderful milking cows must be placed in the same 
category with those dairy cows affected by cestromania, 
which the professor informs his readers “are termed bullers, 
and cannot le stinted Calculations such as these are so 
utterly speculative, and made with so total a disregard to the 
modifying circumstances of age, food, constitution, and state 
of health, &c., which affect the quality and quantity of milk 
secreted by different cows, and by the same cows at different 
periods, that they seem to be but little removed from the fan¬ 
ciful computations of Captain Bobadil, to kill an army in the 
field40.000 strong,in a given time, with only nineteen backers, 
provided two important concessions were made, viz., 1st, 
that his calculations were correct, and that the enemy agreed 
to his proposed mode of slaughtering. 
In my former communication I stated, that in three 
months after the six cows had been spayed by Mr. Gamgee 
they were all parted with at a great sacrifice, and their place 
supplied with new milkers. I may add that these were se¬ 
lected out of one of the largest dairy stocks kept in Fife- 
shire, amounting to 100 cows, a few more or less. Mr. 
