CUBIC MEASURE. 171 



Cubic foot. Cubic yard. 



To find ike ciibic contents of any solid body. 



RULE. Multiply the length by the breadth, and that pro- 

 duct by the thickness. 



NOTES. 1. A load of earth contains a cubic yard, and 

 weighs about 3250 Ibs. 



2. Railway and transportation companies estimate light 

 freight by the number of cubic feet it occupies ; but heavy 

 freight is estimated by weight. 



3. A pile of wood 4 feet wide, 4 feet high, and 8 feet long, 

 contains 1 cord; and a cord foot is 1 foot in length of such 

 a pile. 



4. A perch of stone or masonry is 16 feet long, 1 feet 

 wide, and 1 foot high, and contains 24f cubic feet. 



5. A brick is usually 8 inches long, 4 inches wide, and 2 

 inches thick ; hence 27 bricks make a cubic foot. 



6. Joiners, painters, and masons make no allowance for 

 windows, doors, tfec. Masons make no allowance for the 

 corners of the walls of houses or of cellars. The size of a 



