8 BULLETIN 288, U. S. DEPAETMENT OF AGBICULTUEE. 



The construction of the gins is such that the roll can be dropped and the box cleaned 

 in a very few minutes. Some improved gins are arranged so that the roll box may be 

 emptied -without stopping the gin, thereby further simplifying the operation. 



Having cleaned the machinery up to and including the roll box, the next step is to 

 prevent the seed of the variety to be ginned from falling into the conveyor. It is 

 impracticable to clean the conveyor satisfactorily, and therefore it should not be used 

 •when planting seed is to be obtained. By adjusting the position of the apron of each 

 gin the seed can be made to fall upon the floor in front of the gin instead of into the 

 conveyor. From here it can be sacked easily. 



The floors about the gins should be cleaned to the extent that no seeds are left lying 

 around to cause mixing. Canvas spread upon the floor to receive the seed from the 

 gins is often used. 



Such, precautions require time in which to carry them out effec- 

 tively, and time spent in this manner naturally reduces somewhat 

 the amount of ginning that otherwise could be done in a day. On 

 this point the ginner may find cause to base objection to such proce- 

 dure, but it should be possible to meet the objection by fully com- 

 pensating him for the extra time consumed. The expense of special 

 ginning in some sections may be reduced by arranging to have it done 

 on specified days or at the close of the season, when more time is 

 available. In any event, the amount of mone} 7 " that may be required 

 to secure the ginner's cooperation in the maintenance of pure seed is 

 almost negligible in view of the favorable effect such precautions will 

 have upon the farmer's crops in succeeding years. 



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