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.eftsily be so calculated, as to answer with their slower 

 motion. It would therefore seem, that oxen are at least 

 equal, if not superior to horses, for working threshing- 

 machines. There are indeed some circumstances that 

 appear to be in favour of oxen. It is is well known, 

 oxen are very steady and constant in the yoke, which is 

 a very material property ii> any animal employed in 

 machinery. 



These are considerations which merit well the atten- 

 tion of every farmer in the kingdom ; and it now can 

 hardly be doubted, that for working in the threshing- 

 mills, and other extra labour, a few oxen on a farm 

 might be attended with infinite advantage. 



3. The next power is wind, and if water cannot be 

 got, it is contended, that a wind- mill is greatly superior 

 to one wrought by horses. Wind-mills, it is said, are 

 now so nicely constructed, that the sails contract and di- 

 late, according as the wind increases or decreases ; so that 

 now the motion is much more uniform than that of a 

 horse mill driven by the most careful driver. The next 

 great advantage of the wind mill is its great power, 

 which permits more work to be done in the same time, 

 and at less expence, as the ordinary servants on the farm 

 are capable of threshing a sufficient quantity after hay- 

 ing gone their yoking or journey at either cart or 

 plough, during the winter months ; besides, the expence 

 of tear and wear of horses employed at the threshing- 

 mill, is beyond calculation, as no work upon the farm is 

 half so expensive*. MrRennieuf Oxwell tvin ins considers, 

 that a wind threshing-mill, equal to the power of eight 

 horses, will annually save, when compared to h. 



S 



* Communication from Mr Rcnnie of Ktnblethmont. 



