13 



hay platform. It then becomes necessary to have weights from 

 which various combinations may be made. Two bricks may be 

 selected that will weigh 4 pounds each ; another may be broken 

 thus getting, by a little chipping, a 2-pound weight ; also a piece 

 can, with a small amount of work, be made to weigh i pound. 

 With these, even pounds from i to 1 1 can be made out. 



I have just carefully tested the balance we are using and find it 

 sensitive to y^ ounce. The grain rations may be weighed on the 

 same balance or they may be measured. The former is more accu- 

 rate but not quite as convenient. 



