REPORT OF THE ENTOMOLOGIST, 1 
tending the entire length of the latter, the two strips to be sewed together at the 
top and for a distance of several inches down the side or front. Along the outer 
edge of each of these strips sew a wide seam, large enough to admit a piece of quarter- 
ich gas-pipe, which should be long enough to extend along the entire length of 
this opening in the tent. When these pieces of gas-pipe are in placo, a strong piece 
of cord may be attached to each, near their lower ends, and passed through small 
pullies, fastened to the tent at the upper ends of the wooden supports or Tegs: by 
pulling down on these cords the te, of the tent will be pulled wide open, so 
as to readily allow the tent to pass over the tree. 
To accomplish this the two supports of the tent are lifted up by two persons and 
the tent is passed forward over the tree, after which the lower ends of the supports 
are allowed to sink into holes in the earth previously dug for this purpose, after 
which the holes should be filled up, the earth being packed quite firmly in them. 
The door-way of the tent is next closed by bringing its opposite sides together and 
wrapping the two pieces of gas-pipe, one around the other, fastening with strings 
sewed to the tent on either side of the door-way. The surplus cloth at the bottom 
of the tent is next spread out and earth thrown upon it to prevent the escape of 
the gas. 
“A tent of the above description has been used by myself and given very good 
satisfaction. I have recommended iron or steel rods for the frame of the tent, in- 
stead of gas-pipe, since the latter is very liable to break at the joints or couplings. 
There is yet need of a device of some kind by which the circle at the top of the 
tent could be made larger or smaller at the will of the operator, and also regulating 
the height of the wooden supports, so as to adapt the tent to the size of the differ- 
‘ent trees to be operated upon. The moving of the tert from tree to tree would be 
greatly facilitated if the wooden supports of the tent were attached to runners like 
those of a sled. 
The Wolfskill Fumiga tor.—This apparatus was designed by Messrs. J. W. Wolf 
skill and Alexander Craw, of Los Angeles, and is the first that has been used with 
' success upon the largest orange trees. A good idea of its appearance is given in 
Plate V. 
This fumigator consists of a strong wooden frame mounted on a low wagon or 
truck; in the center is a tall mast, the bottom of which rests upon the wagon reach, 
which is strengthened by iron braces attached to the side pieces of the frame. The 
mast is placed between two pieces of pine timber and a stout iron pin passes through 
these pieces and through the mast. The bottom of the mast is kept in place by two 
blocks of hard wood bolted to the reach on either side of the mast; their inner ends 
are concave, so as nearly to encompass the lower end of the mast. For staying the 
mast four iron rods are attached at one end to the four corners of the frame 
on the wagon, while their upper ends are attached to an iron clamp which encir- 
cles the mast a little above the middle of the latter. 
A short distance above this clamp is an armor boom and its triangular brace, 
bolted together so as to encompass the mast; at either end of this arm is a frame 
carrying one main roller and two side rollers, the latter being placed at a distance 
of about 6 inches from either end of the main roller,and their office is to prevent 
the tent from passing off of the ends of the main roller while it is being drawn 
over the latter. For the support of these rollers and the triangular brace, iron 
rods are attached to the top of the mast and pass to either end of each of the roller 
frames, and also to each outer corner of the triangular brace, while two other iron 
rods are fastened at one end to each outer corner of this brace, their other ends 
being fastened to one of the wooden side pieces of the frame on the wagon. An 
ivon rod also passes from each outer corner of the triangular brace to either end of 
the roller frame at the outer end of the arm to prevent side motion. 
The tent is drawn off of the tree by means of a rope that passes through the 
two main rollers and down the mast to a windlass attached to the frame of the 
wagon, extending from one side piece to the other, and passing just behind the 
mast; by turning this windlass the tent is drawn off of the tree, passing over 
the main roller at the outer end of the arm, then over the one at the opposite end, 
and down the mast till the bottom of the tent has been elevated above the tops of 
the highest branches of the tree. At the bottom of the tent is fastened a circle of 
gas-pipe, for the purpose of keeping the bottom of the tent spread out while it is 
passing down over the tree; iron or steel rods made into a circle would be prefer- 
able to the gas-pipe, which is liable to break at the joints or couplings. To this 
circle are attached two or three ropes, to be used in pulling the tent down over the 
tree. The main rollers at either end of the arm are pyovided with a deeply-grooved 
pully in the center of each, over which the rope passes in drawing the tent off of 
the tree, or allowing it to pass down over one. 
When it is desired to transport this fumigator to aconsiderable distance the mast 
is lowered by means of # derrick composed of four pieces of pine timber; the lower 
