§70 ME. J. B. LAWES AND DE. J. H. GILBEET ON THE CO^IPOSITION OF 
total Fat respectively, of the slaughtered animals, which will, on the average, be applied 
in some form as human food. 
In the Calf and Bullocks analysed, about two-thuds of the entii’e Nitrogenous su - 
stances of the body were contained in the so-caUed Carcasses. Of this, say 66|rds per 
cent, of the whole nUrogen of the body thus found in the Carcasses, somewhere about 
12 parts were contained in the Carcass-5owes. Supposmg none of this were eaten, the^ 
would remain only about 54frds per cent, of the whole nitrogen of the body, in the soft 
edible portions of the Carcass. Of the 33ird per cent, of the nitrogen wHch is accumu- 
lated in the Offal parts, in the Calf perhaps 7 to 8 parts, and in the Oxen perhaps from 
4 to 5 parts will be consumed as human food*. Adding this to the portion eaten 
in the soft parts of the Carcass, it would appear, that m Calves rather more, and m 
Oxen rather less, than 60 per cent, of the total nitrogen of the bodies wiU be consumed. 
Of the total Fat of the same animals, about 7 0 per cent, in the case of the Calf,^ and 
rather over 75 per cent, in the case of the Oxen, were found in the Carcasses. Of the 
30 per cent, of the whole Fat of the Calf, which were fomid in its Offal, aU but about 
5 parts may be estimated as eaten-— that is to say, 95 per cent, of the whole Fat of the 
animal. Of the 25 per cent, of the Fat in the Offal of the Oxen, about one-fifth is sup- 
posed to be consumed. This, with the whole of the Carcass-fat, will show 80 per ceot. 
of the total Fat of Oxen to be applied as food. In estimating the proportion of the 
consumed Fat, to the consumed Nitrogenous compounds in Calves and Oxen, it is assumed 
then, that in the former 95 per cent, of the total Fat, and 60 per cent, of the total 
Nitrogenous compounds, will be applied as food ; and that in the latter (oxen), 80 per 
cent, of the total Fat of the body, and 60 per cent, of the Nitrogenous matters will be 
so applied. 
Of the Lamb and Sheep analysed, owing to the large amount of nitrogen in the ivool. 
little more than half— from 52 to 63 per cent.— of the total amount of the nitrogenous 
compounds of the body was found in the Carcass. About 10 per cent, were contained 
in the bones of the Carcass, of which but little would be consumed as food. To make 
up for the nitrogen in the bones of the carcass that will not be consumed, Aoin 6 to 7 
parts of the 47 or 48 per cent, of the whole nitrogen included in the Offal may be con- 
sidered as eaten. Thus, in round numbers, it may be estimated, that of the whole of 
the Nitrogenous compounds of the body of the Lamb and Sheep, oO per cent, are 
applied as human food. Of the total Fat of the Lamb and Sheep, about 75 per cent, 
will be contained in the Carcass-parts ; and this is the proportion of the whole, which, 
in the case of Sheep, should be taken as eaten. Of the Lamb, however, 95 per cent, of 
the whole Fat of the body is supposed to be consumed. 
* For the amounts, and distribution, of the Bones in the different animals, see Tables I. to X., inclusive, 
in the Appendix, pp. 580—589 ; also the discussion at pp. 523, 524. For the distribution of the JSiiioffei. 
in the different parts of the body, see Tables V. and VI., pp. 514 and 515, and the discussion upon them. 
And for the estimates as to which portions of the Offal parts wiU usually be consumed as food, see p. 524 
and context. 
