10 BULLETIN 1467, U. S. DEPARTMENT OF AGRICULTURE 
In order to prevent mixture of seed at the gin, the rolls must be 
dumped and cleaned out and all seed cotton removed from the 
cleaner, beater, and overhead distributor. If the seed is not caught 
on the floor, the screw conveyor must also be cleaned out. These 
operations take considerable time and would hardly be practicable 
during rush periods. 
A cleaning operation of this kind would be almost prohibitive 
if it was desired, as was the case in the Coachella Valley in 1921, 
to preserve all of the seed of one variety in a district about equally 
divided between three varieties, and if the cotton should be allowed 
to come to the gin indiscriminately, since it would then be necessary 
to clean the gin machinery many times a day. 
As there were two gins in the valley and the association con- 
trolled only about a third of the acreage, it was hardly practicable 
to make arrangements at both gins for taking proper care of the 
Acala cotton seed. Negotiations were therefore opened with the 
gins to see which would provide the best and most economical ar- 
rangement for taking proper care of the association's seed. 
The regular charge for ginning at that time was 35 cents a hun- 
dred pounds of seed cotton. One ginner asked 50 cents a hundred- 
weight for ginning association cotton because of the time and 
trouble required to prevent mixture of seed and because of the loss 
of the customary profit from reselling the customers' seed to the 
oil mills. The other ginner offered to take any desired precautions 
to prevent mixing seed and to charge only the regular price of 35 
cents a hundredweight for ginning, provided the association agreed 
to send all its cotton to that gin. The association accepted the 
latter as the more advantageous arrangement, and as its agreement 
with the growers permitted it to make any regulations governing 
ginning that were deemed necessary, it instructed its members to 
take all their cotton to the gin agreeing to care properly for the 
seed at the regular ginning price. 
This gin installed an additional seed auger through which only 
Acala seed was to be run, thereby avoiding the labor and congestion 
in the gin building occasioned by catching seed on the floor. Sepa- 
rate days were set aside for ginning Acala cotton and the gin was 
thoroughly cleaned out before each "Acala day." The horticultural 
inspector was stationed at the gin during the cleaning process to see 
that it was done thoroughly. 
A total of 781 bales was ginned from the 1921 crop, 219 bales of 
which were Acala, 216 Durango, and 292 " short " cotton grown 
from mixed Mebane seed. In addition, about 20 bales of Pima, 
which had to be shipped to the Imperial Valley for ginning, were 
produced from a ratooned field. 
Not quite all of the Acala cotton grown in the Coachella Valley 
during 1921 was controlled by the association. The owner of one of 
the gins had also purchased seed from the San Joaquin Valley. This 
seed he put out with local growers, bought the increased seed back 
at a premium over oil-mill prices, and offered it for sale in other 
districts for planting purposes, 
