New York AGRICULTURAL EXPERIMENT STATION. 309 
A HEXAGONAL FOLDING FUMIGATOR. 
During the winter of 1900-1901, a folding hexagonal fumiga- 
tor was constructed and tested. 
In building this fumigator an effort was made to shun most 
of the disadvantages met with in using a tent. 
The box designed and used by Lowe overcomes the disadvan- 
tages of a tent but has considerable waste space and is an un- 
wieldly piece of apparatus to store or move any great distance. 
The folding fumigator was constructed with the idea of having a 
gas-tight box of constant capacity, with as little waste space as 
possible compared with its size, which could be taken down and 
folded, if desirable, stored in small space, or conveniently trans- 
ported from one place to another. Like Lowe’s square box, 
this hexagonal fumigator can be placed around a tree instead 
of having to be lifted over it by means of a derrick, a disadvan- 
tage of the Emory fumigator. 
Frame.—Two sizes of this fumigator were built, one eleven 
and one-half and the other twelve feet high. In form they were 
hexagonal, the shortest diameter being eight and one-half and 
ten feet respectively, for small and large size. Each side of 
the frame was made separately and formed a rectangular figure 
6 x 12 ft. in the larger and 5x114 ft. in the smaller. The stiles, 
vertical strips, of each side were made by ripping nine-inch un- 
dressed spruce boards into four pieces. By making the two 
outer cuts on each board at diagonal the rails were beveled on 
one edge at an angle of 60°. (See Fig. 4, Plate XXIV). The 
latter was necessary in order to have each side stand at the 
proper angle. Hence the stiles were 24 inches wide on the out- 
side, 1{ inches on the inside, and 1} inches thick. The top and 
bottom rails and horizontal brace were of the same material, 
14 x2? inches. The diagonal braces were made of 1x2 inch 
stuff. Instead of being mortised the stiles and rails were 
mitered and firmly nailed. To give additional strength a tri- 
angular block was nailed into each corner. The horizonta! 
brace was placed above the center and a diagonal brace below 
