94 ELEMENTARY AGRICULTURE 



nure produced by different farm animals during the 

 year when they are kept in stalls and the manure care- 

 fully saved. On the average farm at least two-thirds 

 of this value is wasted. Pupils should use the second 

 table for ordinary problems. To the increase in the 

 value of the animal produced by feeding a certain 

 amount of feed must be added the value of the manure 

 produced by the animal from the food that is eaten. 



Free Bulletins, U. S. Dept. of Agriculture. 



No. 41. Fowls: Care and Feeding. 



No. 51. Standard Varieties of Chickens. 



No. 64. Ducks and Geese : Breeds and Management. 



No. 100. Hog Raising in the South. 



No. 141. Poultry Raising on the Farm. 



No. 179. Horseshoeing. 



No. 200. Turkeys: Breeds and Management. 



No. 205. Pig Management. 

 Extracts. 



No. 15. Some Practical Suggestions for the Suppression and 

 Prevention of Bovine Tuberculosis. 



Table IX. 



Table showing value of manure, per head, produced annually 

 by farm animals: 



Horse $27- 



Cow 19-00 



Hog 12.00 



Sheep 2 - 



Table X. 



Table showing value of manure, per animal, saved annually 

 from animals by the average farmer: 



Horse $">- 



Cow 6 - 



Hog 4-00 



Sheep 75 



