THRESHING WITH SPECIALLY EQUIPPED SEPARATOR 2O3 



and second or third hole and adjusted somewhat finer than 

 the conveyor-sieve. To do good work, it is necessary to 

 use as a lower shoe-sieve, the twenty-four by twenty-four 

 mesh wire one, set high in front, next to fan, and low at 

 rear, about third notch and fifth or sixth hole. In most 

 cases the fan-blinds must be kept closed and in some 

 cases it may even be necessary to more completely close the 

 openings by fitting thin boards or other like material to 

 the fan-blinds. Should the sieves become overloaded, the 

 rear wheels may be slightly lowered. 



Threshing Kafir-Corn. The three principal varieties of 

 Kafir-corn the white, the red and the black-hulled white 

 (African-millet), are known by various names, such as 

 "red-top cane" or "sumac-cane," "milo-maize," "black- 

 amber-cane," "guinea-corn," etc. Any of these may be 

 successfully threshed with a "Case" separator. When the 

 machine is kept continually threshing crops of this sort, it 

 is best to use the "Texas" straw-rack, which is made espe- 

 cially for this work. The general directions for wheat 

 may be followed in regard to the cylinder and concaves, 

 speed and cleaning apparatus. If the seed is easily cracked, 

 the pulleys for rice may be used and cylinder speeded ac- 

 cordingly. For a screen, use the one-eighth-inch round 

 hole, O, unless seed is small, in which case the three-thirty- 

 seconds-inch round hole, N, may be used. 



Threshing Indian^Corn or Maize. The threshing of 

 Indian-corn is very severe on a separator and the use of a 

 good machine for this purpose is therefore not recom- 



