402 FARM-YARD MANAGEMENT, 25. 



The outlines of the art lie in adapting the 

 ilrensth of the wind to a due and regular 

 lupplv of the given contents of the hopper j 

 and in adjufting the feveral regulators in fuch 

 manner as to feparate the chaff, tte colder, 

 and the grain with the greateft poflible cx- 

 ,ad:nefs. 



IVbeal is generally run twice through the 

 machine ; but with a good machine, pro- 

 perly regulated and deliberately fed, it may 

 be made marketable by running it once 

 through. Barky and oa^s are feldom put 

 throuo-h more than once. And l?eans or peas 

 may be cleaned as faft as a man can fupply 

 the hopper with them. 



Superior advantages of this fpecies of fair 

 arc dilpatch, the faving of the labour of one 

 man, and the prcfervation of the health of 

 thpfe who arc employed. The fail-fan,— the 

 common winnowing-fan of the kingdom at 

 jargc, — requires one perfon to turn, one to 

 ri^^dle or " heave," and one to fill the riddle 

 or fcuttles ; and for this fctt feven or eight 

 quarters of wheat is a day's work. Two per- 

 fons with a machine-fanj properly fet and 



pre- 



