Dairy Farming. 
699 = 455 
( lerwise the curve would have been seen to be continuous 
j>m one year's end to the other ; for some cows were at the pail 
iroughout. The herd numbered 55 cows in 1857, 52 in 1858, 
( in 1859, 66 in 1860, and 71 in 1861 and 1862. It will be 
I derstood that tlie curves represent the varying quantity of 
Ik for weekly disposal in the dairy. Where the herd is well 
maged on an ordinary dairy farm, unaccustomed to forcing by 
rchased foods, an annual curve of this kind ought to corre- 
•ond pretty nearly to the natural produce of food upon the 
fm. If grass fail the curve will drop, and if it be particularly 
; undant in any month the curve in that month will rise ; but 
; -re are also other circumstances on which it is contingent, 
lus the remarkable drop in the curve for 1862 between the 
1 rty-third and the thirty-fifth week of that year was not owing 
1 any sudden failure of food ; it was owing to a sudden failure 
( health. The foot-and-mouth disease attacked the herd at 
lit time and produced the result thus strikingly represented.* 
.rain, the very late ascent of the curve in the case of the year 
58— not till the thirteenth week of the year — was not owing 
1 lack of food ; it was owing to the cows not coming to the 
]il early enough. And this points to a fault, whether unavoid- 
^le or the result of mismanagement, which was no doubt of 
'ry serious consequence. The cows ought to be in milk before 
1^ time when grass is plentiful. And curves which, like that of 
t)2, rise continuously and almost abruptly during the fifteenth 
d sixteenth weeks of the year, show that the cows were then 
the condition in which they are able to make the full use of 
;ir opportunities. Even the details of this diagram are worth 
:idying. Thus a sudden drop between the eighth and tenth 
■eks of 1862 tallied exactly with Mr. Glaisher's meteorological 
port : " From the 20th of February to the 13th of March there 
IS a daily deficiency of temperature to the extent of 5° 2" Fahr." 
These lines are obviously useful to any farmer who seeks 
idance from experience ; and I am sure that Mr. J. T. Har- 
on, now of Ealing, Middlesex, did a good thing by the 
"thod which he thus pointed out and practised, of pictorially 
presenting the proceedings of a dairy : and I think that it well 
serves mention in a Report of English Dairy Management. 
I conclude with the following general summary of English 
iry experience. 
The profits of Dairy Husbandry in England, as elsewhere, 
pend, (1) upon the health of the cattle ; (2) upon the selection 
d the maintenance of a suitable breed of cows ; (3) upon the 
oper treatment and feeding of the live-stock ; and (4) on the 
■tails of dairy management. 
* Each of the cows represented in the upper diagram suffered from this disease 
tween the 33rd and the 37th weeks of 1862. 
