THE DAIRY HERD 109 



dairy purposes is the trouble from gas odor where there 

 is any tendency to laxness in the care of machinery. 

 Where precautions are taken against leakage of gas or 

 gasoline, and where the exhaust is properly conducted 

 away, there should be no trouble from gas odors. 



The fuel cost of running a gasoline engine may be 

 stated as follows: When gasoline is worth IDC per 

 gallon, gasoline power will cost ic per brake horse 

 power per hour. 



