520 FARM AND SCHOOL PROBLEMS. 



The time is rapidly approaching when thorough agricultural 

 training will be based in part upon a thorough knowledge and 

 skill in drawing. 



Work for Manual Training Department. 



In the agricultural course manual training should include 

 such work as the following : 



In constructing models for large buildings a scale of one or 

 two feet per inch may be used. 



For small articles for household use the work may be made 

 practical and serviceable by requiring pupils to make furniture 

 and tools for home use or for sale by the school. 



Manual training should include models of frames, for all 

 kinds of farm buildings, and models of buildings completed. 



Problems should be given pupils for solution showing the 

 cost or estimate of cost for a large building constructed on the 

 plan shown in the model. 



Many of the serviceable minor equipments of the farm 

 may be made in the manual training room. 



Cribs and Granaries. 



A bushel contains 2,150.4 cubic inches. 



Because of the two ways of measuring corn in the ear and 

 after it is shelled, there has always been more or less confusion ; 

 this arises from the fact that in many localities it is customary 

 to speak of a bushel measure full of ears as a bushel of corn. 

 In all problems given in this book, a bushel of corn is taken to 

 mean 56 pounds of shelled corn or 70 pounds of ears, because 

 70 pounds of ears are supposed to contain 56 pounds of grain. 



It must be kept in mind that the relative weight and bulk of 

 corn is constantly varying on account of variation in moisture 

 content. (See Chap, on Corn). On an average, however, 70 

 pounds of ear corn will fill 2 bushel measures, or 2 bushel meas- 

 ures of ear corn will contain i bushel measure of grain; hence 

 for the measurement and computation of capacity in cribs, the 

 following facts will be of great convenience. 



2 cubic feet of ear corn will produce i cubic foot of shelled 

 corn. 



A bushel measure contains i^ cubic feet (approximately.) 



