of different Breeds of Slieep. 
83 
In tlie next table, the foregoing data of the average prices of 
our saleable produce — mutton and wool — are applied to form 
some estimate of the probable comparative economy of the dif- 
ferent lots of sheep as early fatteners, and when fed under cover. 
In this Table (XXIV.) we have — for each description of sheep, — 
The foods consumed to produce 100 lbs. increase in live- 
weight. 
The extra food heyovd Cotsxcolds (which consumed the least), 
consumed to produce 100 lbs. live-weight. 
The quantities of marketable produce — mutton and wool — 
contained in 100 lbs. of the unfasted live-iceight with shorn wool 
added. 
The money-return, at average rates, of the mutton and wool in 
100 lbs. live-weight. 
Difference of money-return over or under that of Cotswolds for 
100 lbs. live-weight. 
Cost of extra food consumed beyond Cotsivolds to produce 100 lbs. 
live-weight : tlie oilcake reckoned at \d. per lb. = 9/. per ton ; 
the clover-chafT as hd. per lb. = to 4Z. 10s. per ton ; and the 
Swedes at 4r/. jier cwt., consumed on the farm, = 6s. %d. per 
ton. 
And, lastly, the difference or excess of extra cost of food over 
money-return for 100 lbs. live-weight, compared with Cotswolds. 
According to the figures in this Table (XXIV.), in no case does 
the average extra price of the mutton and wool of the more choice 
descriptions of sheep, compensate for the cost of the extra food 
which has been consumed to produce them. It may be objected 
to our exact figures, that all the experiments were not made side 
by side, and during the same period, and that therefore both 
difference of season and some variation in the quality of the 
roots may, perhaps, in a degree affect the results ; nor, perhaps, 
is the method of estimate adopted free from all objection. It is, 
however, the safest we can adopt ; and, we believe, that the 
results give a fair indication, at least of the direction of the com- 
parative economy of the different lots, considered as early fat- 
teners, and fed under cover. 
It is quite consistent with the physiological distinctions which 
must characterise animals adapted to more of exposure and exei- 
cise, that they should — as in the experiments they were found 
to do — consume more food to produce a given weight of in- 
crease than the opposite description of animal. The experi- 
mental results should therefore, as we have said, be taken as cer- 
tainly in the right direction, whether or not they exactly repre- 
sent quantitatively the relative fattening qualities under the 
system adopted, of the different lots. And, again, this extra 
food required for a given amount of increase, and the greater 
G 2 
