220 
DOMESTIC ANIMALS. 
until at last it will not pay for his food, and he should then be immedi- 
ately slaughtered. 
The Chemestry Of Pig-Feeding. — In 1851-2, with the view of ascertain- 
ing, among other points, the comparative value of vavious kinds of food 
used for fattening pigs, Mr. J. B. Lawes, of Rothamsted, Herts, the 
eminent chemist and manufacturer of super-phosphate of lime, under- 
took a series of experiments on a large scale, recorded in a paper illus- 
trated by a series of elaborate tables, which occupy upwards of eighty 
pages of the fourteenth volume of the “Journal of the Royal Agricul- 
tural Society.” This paper, of the highest possible value to the scien- 
tific agriculturist, few plain farmers or fancy pig-feeders would have the 
courage to read, or would be able fully to understand, if they did. We 
shall, therefore, endeavor to give the results briefly and plainly ; they 
fully confirm the opinions of the most successful pig-feeders. 
The food employed in these experiments was composed as follows: — 
1. Equal weights of beans and lentils ; 2. Indian corn ; 3. Bran. The 
food was accurately weighed ; and the animals were put into the scales 
every fourteen days. 
For the first series of experiments, forty animals, as nearly as possible 
of the same character, and age about ten months, were purchased, and 
divided into twelve pens of three pigs each, and were all fed alike for 
twelve days, changed from pen to pen, and the unruly ones whipped, so 
as to put down the tyrants and enable them all to start fair in the feed- 
ing race for weight. When fairly started, twelve dietaries were pre- 
pared from three standard food-stuff's, arranged as follows: — 1. Bean 
and lentil mixture, an unlimited allowance ; 2. Two pounds of Indian 
corn per pig per day, and an unlimited allowance of the beans and 
lentils ; 3. Two pounds of bran per pig per day, and beans and lentils 
unlimited ; 4. Two pounds of Indian corn, two pounds of bran, and 
the bean and lentil mixture unlimited; 5. Indian corn alone, unlimited; 
6. Two pounds of beans and lentils, and unlimited Indian corn allow- 
ance ; 7. Two pounds of bran per day, and unlimited Indian corn 
allowance ; 8. Two pounds of bean and lentil mixture, two pounds of 
bran, and Indian corn unlimited ; 9. Two pounds of bean and lentil 
mixture, and bran unlimited; 10. Two pounds of Indian corn-meal, 
and bran unlimited; 11. Two pounds of bean and lentil mixture, two 
pounds of Indian corn, and bran unlimited; 12. Bean and lentil mix- 
ture, Indian corn-meal and bran, each separately and unlimited. 
This food was duly mixed with water. The animals were fed three 
times a day ; viz., early in the morning, at noon, and at five o’clock in 
the evening. The limited food was mixed with a small quantity of that 
given ad libitum in the first two feeds of the day. Great care was 
taken in the management of the supply of food, both that the troughs 
should generally be cleared out before fresh food was put into them, 
and that the pigs should always have a liberal supply within their 
reach. 
In one of the pens two of the pigs having become unwell from large 
swellings in their necks, which affected their breathing, a mixture was 
prepared, consisting of twenty pounds of finely-sifted coal-ashes, four 
pounds of common salt, and one pound of super-phosphate of lime, and 
