866 
SIR J. B. LA WES AND DR, J. H. GILBERT ON THE COMPOSITION 
of certain more arbitrarily separated parts, were determined. To this end in all 326 
animals were experimented upon—namely, 2 calves, 2 heifers, and 14 oxen; 249 
sheep, in five classes as to age, maturity, fatness, and mode of feeding; and 59 pigs, in 
seven classes, arranged chiefly according to the food consumed. The following is a 
very condensed summary of some of the results obtained in this part of the inquiry :—• 
Table I. — Percentage (in fasted live-weight) of certain collective parts. 
Oxen. 
Sheep. 
Pigs. 
Stomachs and contents. 
11-61 
7-43 
1-28 
Intestines and contents. 
2-74 
3-53 
6-24 
Total. 
14-35 
10-96 
7-52 
Heart and aorta, kings and windpipe, liver, gall bladder 
and contents, pancreas and spleen. 
2-96 
3-30 
3-01 
Blood. 
4-01 
3-97 
3-63 
Total. 
6-97 
7-27 
664 
These facts are of considerable interest viewed in connexion with the great dif¬ 
ference in the character of the food of the different animals ; the ruminants consuming 
such a large proportion of fibre, much of which is indigestible ; and the w 7 ell-fed pig 
but little indigestible matter, and a relatively large proportion of starch, the primary 
transformations of a large part of which are supposed to take place after leaving the 
stomach, and more or less throughout the intestinal canal. With the great variations 
which the figures show in the proportion of the receptacles and first laboratories of the 
food, with their contents, the further elaborating organs (if we may so say), with their 
fluids, appear to bear a much more uniform relation by weight to the entire body in 
the different descriptions of animal. 
The results further showed that whilst during the fattening process the total 
“carcass” parts increased both in actual weight and in percentage in the entire body, 
the remaining parts, constituting the so-called “ offal,” also increased in actual weight, 
but in a much less degree than the carcass parts, and they actually diminished in 
percentage proportion to the total live-weight. 
The following is a summary of the composition of the ten animals analysed :— 
