64 FUMIGATION METHODS 



as we could expect it, and we began work to overcome 

 the two serious objections. First, a box with a per- 

 manent hood, and, seconcfty, one that could be handled 

 without being opened on the sides was needed. At the 

 same time, while we found the rawhide paper perfectly 

 satisfactory on the large box, it was quite trouble- 

 some to put on the frame smoothly. The edges were 

 first glued and then nailed. It was also easily punc- 

 tured by a broken limb unless great care was taken. 

 This last point was not a serious objection, and little 

 or no trouble was experienced on that account. A 

 material, however, with more elasticity was desir- 

 able. 



Taking all these points into consideration, a box 

 of the same dimensions, covered with eight-ounce 

 ducking, was constructed. The sides were screwed to- 

 gether, and the hood fastened on permanently with 

 narrow strips screwed to the top of the frame, as 

 shown in Fig. 32. 



Having completed this box, the most serious obsta- 

 cle arose. How could a box of such dimensions, with 

 permanent hood and sides, be handled ? There was 

 only one way to do it, and that was to pick the box 

 up and lower it over the top of the tree. The prob- 

 lem was solved by the ingenuity of Robert S. Kmory. 

 It was accomplished by means of a thirty-five foot 

 mast made of spar pine and a twelve-foot gaff of the 

 same material. It was fitted with ropes and pulleys, 

 and rigged to the running-gear of an ordinary farm 

 cart, as shown in Fig. 35. By means of this it could 

 be raised and lowered over any tree under seventeen 

 feet in hight. The system worked perfectly, and was 



