728 Journal of Agriculture, Victoria. [10 Dec, 1918. 



Table I. — continued. 



The depth of ploughing was set by Mr. William Ross (the ploughing judge) 

 at 4| inches. The actual acreage ploughed by each tractor was measured. 

 The total time taken up in ploughing includes turning at each end, but 

 does not include delays due to accidental stoppages. 



The conditions of the test were such as not to allow of accurate deter- 

 mination of the iamount of the lubricating oil used. 



(b) Dynamometer Test. 



Independently of the fuel consumption tests, a series of autographic 

 dynamometer tests were taken, the results of which are recorded below. 

 The depth of ploughing was fixed at 4^ inches. 



Table II. 



* In these two cases there is doubt as to depth of ploughing over all, the furrows being the same a» 

 the observed open furrow. 



