23 
by means of ropes passing through pulleys. The tents are operated by 
means of ropes, which pass through pulleys attached to the spars and 
cross-pieces described above, there being five ropes attached to each 
tent; one of these is attached to the apex of the tent, and passes 
through a pulley fastened to the middle of the above-mentioned cross- 
piece; two other ropes are attached to opposite sides of the tent, about 
midway between its apex and base, and pass through pulleys fastened 
to each of the spars near their upper ends; the other two ropes are 
attached to opposite sides of the lower edge of the tent and pass through 
pulleys fastened to each of the spars a few feet higher up than those 
above described. To the bottom of the tent is attached a wooden eir- 
cle in several pieces, and the two ropes attached to the bottom of the 
tent are fastened to this circle; these ropes are not exactly on opposite 
sides of the tent, the space between them equaling about one-third of 
the entire circumference of the lower edge of the tent. 
In taking the tent off of a tree the two ropes attached to the tent 
midway between its base and apex are first drawn downward until their 
points of attachment are slightly above the top of the tree, after which 
the two ropes attached to the lower edge of the tent are drawn down- 
ward until their points of attachment are drawn up against the spars 
at the places wliere the pulleys through which these ropes pass are fas- 
tened ; the lower edge of the tent at this stage will be perpendicular 
to the surface of the ground, and these ropes are further pulled upon 
until the spars on this side of the wagon are perpendicular to the 
wagon, thus bringing the weight of the tent upon the middle of the 
wagon; the spars are prevented from going over backward any farther 
by the presence of the inner upright posts referred to at the beginning 
of this description. When both of the tents have thus been drawn upon 
the wagon the latter is moved forward until the tents are brought op- 
posite the next two trees. Before the tents are again let down over 
the trees the fumigator is first braced up by means of four long braces 
attached to each of the four corner posts at a distance of about 8 feet 
from the ground; these are attached in such a manner that they may 
be swung out at right angles to the fumigator, or, when not in use, may 
be swung around and loaded upon the wagon without first detaching 
them. After these four braces are in position the ropes attached to one 
of the tents are let out and the tent allowed to fall down over the tree, 
a guide-rope being attached to its lower edge to aid in guiding it in its 
downward descent over the tree. 
Mr. Souther, the inventor of this fumigator, informs me that a fumi- 
gator of this kind, without the wagon and tents, could be built for about 
$60. He also informs me that a patent has been granted to him upon 
this fuinigator. 
Besides the above fumigators IT may also mention one which has been 
used in a few instances with very good results. It is an extremely 
simple affair, consisting of an upright post the lower end of which is 
