ADDENDA. NO. 2. 457 



very important and satisfactory detail, of a comparative trial of 

 five threshing-mills, for the purpose of ascertaining the quantity 

 of grain that could be threshed by each.* 



The result of the trial was, that when oats are taken, four 

 horses could thresh, without being overstrained, the following 

 quantities : 



Bolls. Bushels. 



In one hour, - 5 30 



In four hours, - 20 1 19 



In eight hours, - 40 238 



The number of hands required were as follows : 



A feeder, 1 



A man and woman to hand the sheaves from the mow to 



the feeder, - - 2 



One man to riddle the grain/ 1 

 Men to take away the straw from the shakers, and to stack 



it up in the barn, 3 



A man or lad to drive the horses, - 1 



8t 



* See the account drawn op by J. F. Erskine, Esq. of Mar, in the 

 Farmer's Magazine for May, 1813, p. 178. 



t On this subject a correspondent, who is well acquainted with threshing- 

 machines, remarks, that though the number of hands, at the mill in ques- 

 tion, might be what is above stated, yet that such is by no means the ar- 

 rangement of labour at mills in general cases. He says, that the hands 

 usually employed are, two men with a cart, to bring the corn from the stack 

 to the mill loft ; one man to feed the mill ; two girls or boys to open out 

 the sheaves, and hand them to the feeder; two girls to riddle the threshed 

 corn, ?ind remove the chaff; and two men to build the straw in the barn, 

 after it is threshed or three men if it is carried to the straw-yard. It It 

 unnecessary to make men open out the sheaves, or riddle the grain, seeing 

 tbat these operations can be done as well, and at one half of the expence, 

 by sir!?, or women. 



