328 ox IMPLEMENTS SELECTED FOE TIUAL. 



The field selected for the trials on Mr. Monteith's farm has a 

 surface which, according to the section fig. 2, has an average 





■^^^'^'''''^^^'^^^^^-^^^ 



M 



'£ 



Scale to Section 

 50 o 100 200 ^ooTeet 



'I'M 



gradient of about 1 in 10, which was considered not unfavour- 

 able to obtaining a fair working trial of the powers of the tackle. 

 (The position of the section L M is shown in Fig. 1.) The field 

 was in stubble, with a very liberal allowance of farm-yard manure 

 spread on it. The soil may be called light and free from stones. 

 The weather throucrhout the whole of the trial was wet and 

 very foggy, but not so wet as to interfere with the proper work- 

 ing of the apparatus. 



Engine* 



The engine used during the experiments was one of Eobey s 

 patent traction engines, 10 H.P. fnominal), ^Aeighing 10 tons 

 10 cwt. 



During the trials the fly-wheel averaged 140 revolutior^ per 

 minute, giving an average speed to the driving rope of '22 miles 

 per hour. 



Plough. 



The plough was^ Fisken's patent three-furrow ^'* agh, weighing 

 25 cwt., and cutting three furrows 8 J inches cieep by 11 inches 

 ■wide. 



The dynamometer used in ' ''oo- ^ trials was that of 



Messrs Easton & Amos. niaK^-^ . 



Draught of Flougli and Taclck^^ 



Cwts. qrs. lbs. 



The uphill average draught vras =1.9 1 11 

 The do-\vnhill average draught was =13 2 2 



Actual Diflfer^, '> ^ . ^, 3 9 = 653 lbs. 



