431 On Australian Concentrated Mutton-soup 
lbs., and the result would have been a gain of 7^ lbs. of flesh, 
worth 2>s. 'dd. 
The palm-nut meal used in these experiments was obtained 
from Messrs. Alex. Smith and Co., Liverpool, who sell it by 
the following guaranteed composition : — 
Moisture 5-92 
Oil and fatty matters 20 '01 
* Albuminous compounds (flesh-forming matters) .. 13 '87 
Mucilage, sugar, and digestible fibre 38 "24 
Woody fibre (cellulose) 18-58 
Mineral matter (ash) 3-40 
100-00 
* Containing nitrogen 2*22 
Malt-dust, according to Messrs. Lawes and Gilbert, contains 
in 100 parts : — 
Moisture 6-24 
* Albuminous compounds 25-83 
Sugar, starch, and woody fibre 59-23 
Mineral matter (ash) 8-70 
100-00 
* Containing nitrogen 4-10 
As far as these experiments go, it appears that the food given 
to Lot L was incapable of maintaining the original live weight 
ol the pigs, which were fed upon a limited supply of malt-dust 
and palm-nut meal, to which essence of mutton was added in 
a quantity which cost rather more than the addition of peas to 
the same amount of malt-dust and palm-nut meal, upon which Lot 
II. was fed. Under these circumstances peas produced a much 
better result than the Concentrated Mutton-soup. 
It appears from these experiments that essence of mutton 
cannot be economically employed as a substitute for peas, nor 
doubtless for similar material when pigs are kept upon an insuffi- 
cient amount of food, which it is desired to complement by 
some other article of food. 
However, it is quite possible that when pigs are supplied with 
as much ordinary food as they can consume, an additional 
limited quantity of the Concentrated Mutton-soup may have a 
more beneficial effect, and more than repay the cost of the 
soup, when it is given to pigs rather with a view to promote 
the digestibility and assimilation of an excess of ordinary pig- 
food, than with a view to make up the deficiency of the needful 
amount of food to keep the animals in a thriving condition. I 
was anxious to ascertain whether the extract of mutton given to 
pigs, abundantly supplied with nutritious food, has really a 
beneficial effect upon the assimilation of the food, or whether 
the supposed value of the extract as pig-food amounts to nothing 
