32 



FABMEES BULLETIN 848. 



provided with small perforations pointing in all directions to give 

 free escape to the vapor into all parts of the sack of seed at once. 



The connections may be of rubber tubing, but as httle rubber as 

 possible should be used for this apparatus, as it is affected by the 

 vapor of the disulphid, and the couplings will have to be replaced 

 frequently. This, however, will not be a considerable item of expense. 



W J Ert\a.rie4 



Fig. 6.— Apparatus for Cumigating cotton seed in the sack. 



With the apparatus just described one operator would be able to 

 accomplish the entire work of disinfection. The amount of carbon 

 disulphid recommended is about 1 ounce for each 3-bushel sack. It 

 ret^uires only from two to three minutes to vaporize 1 ounce of the 

 hquid in the manner described. Fumigation with carbon disulphid 

 therefore can be made effectively at slight expense. 



