10 



and of other dimensions to accommodate 12 or more 100-pound sacks 

 of cotton seed placed upright upon the bottom. Another tier of sacks 

 could be added if desired. Into each one of these sacks about 1 ounce 

 of carbon bisulphid should be forced by an apparatus for volatilizing 

 the liquid and mixing the vapor with air. The accompanying illustra- 

 tion (fig. 1) will give an idea of this apparatus. It should consist of 



b^ €n>a.r<&e4 



Pig. 1.— Apparatus for fumigating cotton seed in the sack, (Original.) 



three essential parts, as shown in the illustration. A is an air pump 

 having sufficient storage capacity to enable it to maintain a steady dis- 

 charge of air for several minutes without continuous pumping. The 

 stopcock at a} regulates or prevents the escape of air, as may be 

 desired. ^ is an ordinary 2-quart bottle, fitted at V- with a tight 



209 



