448 



Oil Engines. 



economy obtained. Fig. 9 shows the general form and con- 

 struction of the Crossley portable engine as used for all classes 



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of barn and outdoor work, including threshing. When doing 

 ordinary variable work no water, or very little, is required, 

 except that with which the tank under the engine frame is filled 

 before starting. In any case only a few gallons per day are 



i 



