340 CREAMERY BUTTER MAKING 



The above figures show that at the prices indicated for 

 coal and gasoHne, the fuel cost with a steam engine is 

 80 per cent greater than with a gasoline engine, and 1080 

 per cent greater than with a gas producer. It is neces- 

 sary to add, however, that gas producers are not prac- 

 tical where engines of less than 40 or 50 H. P. are re- 

 quired. 



The testimony of dozens of creameries who are using 

 gasoline power, indicates that gasoline costs approxi- 

 mately only half as much as coal to produce a given 

 amount of power. 



Saving Time. The reason that gasoline power re- 

 quires less attention than steam power is due to the fact 

 that the former runs independently of a boiler. This is 

 a very important advantage, especially in a skim station 

 where one man attends to the weighing and sampling of 

 the milk, watches the milk heater and separator, attends 

 to the injector and the firing of the boiler, and does a 

 dozen or more odd jobs, which may incidentally come up 

 in connection with the regular routine work. Here a 

 good gasoline engine would unquestionably be a great 

 advantage, as it would relieve the operator from the con- 

 stant care of the boiler necessary during the running of 

 the machinery. 



Convenience. Regarding the convenience of a gaso- 

 line engine, this will be apparent when we consider that 

 it may be started any time in a very few moments. A 

 steam engine cannot be started without a certain steam 

 pressure in the boiler. About an hour of firing is, there- 

 fore, required in the morning before power is available 

 for separating or churning. With a gasoline engine the 



