32 FUMIGATION METHODS 
construction depend somewhat upon the persons doing 
the work. 
Oiling and painting.—In order to make a tent 
gas-tight it is necessary to cover it with oil, paint, 
or other material. Several methods are in general 
FIG. II—CULVER TENT AND MORSE FUMIGATOR 
use for this purpose, all of which have been used 
with considerable satisfaction. A free application 
of boiled linseed oil is, perhaps, the method most 
commonly used. After the tent is thoroughly satu- 
rated with oil it should be spread out or tacked to the 
side of a building where it can dry. Care must be 
