490 



FARM AND SCHOOL PROBLEMS. 



be seen in the great number of these structures that are being 

 built especially in the dairy regions of the country. 



This being a comparatively new industry it is therefore one 

 of the subjects of greatest importance and interest to the student 

 of agriculture. 



There have been many investigations, experiments and 

 demonstrations that have resulted in reliable, practical and def- 

 inite information. 



Relation of the Size of the Silo to Length of Feeding Period 

 and Size of Herd. 



The following table is prepared on the basis of a ration of 

 35 pounds of ensilage for a cow weighing 1,000 pounds: 



Rule for finding the capacity of a silo approximately. 



Multiply the diameter of the silo by the depth and this 

 product by one-fourth of the diameter and divide the result by 

 1 6 and this will be the capacity of a silo 30 feet deep. For silos 

 over 30 feet deep add one per cent of weight found for each 

 additional foot above 30 feet in depth, up to 40 ft ; 



EXAMPLE. Find the capacity of a silo 12 feet in diameter and 36 

 feet deep. 



