No. 112,J 131 



The difference \s^l mills per bushel in favor of Pitts' ma- 

 chine, which is increased by whatever the cost may be of win- 

 nowing the grain thrashed by Emery's machine and left in the 

 chaff". This difference will pay the extra interest on the cost of 

 the larger machine, the expenses of keeping it in repair, and the 

 cost of an elevator to remove the straw to the stack yard. 



These advantages belong alike to. all the machines of the class 

 of which Pitts' is the representative. 



Not a ftarticle of thrashed grain passed over with the straw of 

 Pitts' thrasher, neither could any heads be found from which the 

 grain was not thoroughly thrashed out. While, however, great 

 and well deserved credit is due to this machine for thoroughness 

 of work and its facilities for repair, it is to be regretted that more 

 attention has not been given to durability and solidity of struc- 

 ture: it is worthy of the best workmanship, which in the speci- 

 men exhibited is in a ratio far below its merits. • 



The same negligence and inattention seem to prevail generally 

 in machinery and implements for the farmer's use, inflicting se- 

 rious injuries upon the cultivator, and discredit upon the me- . 

 chanics who prepare them. 



In Hall & Thompson's machine it was discovered that a little 

 yet a very little wheat passed over with the straw; and the 

 heads were not as perfectly thrashed as by Pitts'. Yet on the 

 whole the performance was very satisfactory. 



Woodbury's machine is novel in its construction, and the ad- 

 justment by which the horses can be stopped immediately isvery 

 useful in practice. The belt being carried above the horses, re- 

 lieves them from the necessity of stepping over it : it is very por- 

 table, but it did not thrash well — a constant streani of grain was 

 passing over the ay)rnn with the straw, and the hj^ads seemed im- 

 perfectly thrashed. 



Scovill's machine also wasted the grain t(^o much to be used 

 with advantage. 



In the class of Thrasiiinii Machines witliout any cleaning appa- 

 ratus. It iias been remarked that hut little actual difference exist- 



