FOR BETTER CROPS 



117 



the separator. To do one horse power's work for ten hours, small 

 gasoline engines use about a gallon of gasoline plus the amount 

 used to operate the engine. Computing from this it is found 

 that it takes about .00011 part of a gallon of gasoline to do the 

 work of separating one cow's milk. Add tliis to the amount of 

 gasoline used (.001489) to run the engine one minute, and the 

 sum is the amount used (.001589 galls.) separating the milk 

 of one cow with a 3-horse engine and a 740 pound separator. 



Strange as it may seem, it should take only about .32 of a 

 gallon of gasoline to separate the milk from 100 cows for 24 

 hours, which at 20 cents per gallon would cost only 6.4 cents. 



Grinding feed 



It takes about ^Vhorse power to run a common hand grind- 

 stone, w^hich means that it takes .958 part of a cent to grind a 

 sickle. If it takes 30 minutes to grind a sickle, and farm help 

 now costs approximately 25 cents per hour, it costs 12.5 cents 

 for a man to turn the grindstone while the sickle is being 

 ground. 



Other Work for the Engine — Saving a woman's labor on a 

 farm is an item which should not be overlooked when consider- 

 ing a farm power plant, and this is especially true of the weekly 

 washing. When the washing machine is run by hand it takes 

 about five minutes of turning for each washer full of clothes, 



