42 FUMIGATION METHODS 



trail boards. It was, however, discovered that for 

 rather small-sized tents yie hoop afforded a better 

 means of handling than did the derrick. 



The hoop tents now in use range from eight to 

 fourteen feet in diameter. They are made in the same 

 way as a bell tent, omitting, however, the arrange- 

 ments for suspending them, and possessing, instead, a 

 series of cloth loops for attaching the hoop, as is shown 

 in the engraving. 



The hoop is usually made of three-quarter-inch gas- 

 pipe; half-inch pipe will do for the smaller sizes, but it 

 is too weak for hoops above ten feet in diameter, as it 

 bends too easily and soon becomes very crooked. To 

 make the hoop, pipe is coupled together until the proper 

 length is reached, according to the size desired, and 

 then bent into shape. The union is then made by in- 

 serting into the ends a piece of iron rod a foot or less 

 in length and just small enough to enter the pipe. 

 Holes are now drilled through the pipe and rod, and 

 rivets are inserted, thus making the joint fast. A 

 coupling with right and left hand threads might be 

 used instead of the rod and rivets. 



The manipulation of a hoop tent varies according 

 to its size. When the diameter of a tent is not much 

 greater than the distance between the nearest branches 

 of adjacent trees, the procedure is that illustrated in 

 Figs. 14-16. 



To move such a tent from one tree to the next, two 

 men place themselves on opposite sides of it, grasp the 

 hoop, and raise the side which is opposite the tree to 

 which they intend to move it ; they step sidewise, 

 dragging the side that is on the ground closer to the 



