36 
‘under the direct supervision of the county horticultural commission- 
ers, in some cases the tents and material being furnished at a merely 
nominal charge, together with one experienced man to superintend 
the work, while a crew of four men operate the tents, the wages of the 
director and men being paid by the owner of the trees. 
Construction and handling of tents——The tents now employed are of 
two kinds, the “ sheet” tent 
of octagonal shape for large 
trees, and the “ring” tent 
for trees under 12 feet in 
height. The ring tents, or, 
as they are also called, the 
bell tents, are bell - shaped 
and have a hoop of half-inch 
gas pipe fastened within a 
foot or so of the opening. 
Two men can easily throw 
one of these tents over a 
small tree. An equipment of 
36 or 40 ring tents can be 
handled by four men. They 
are rapidly thrown over the 
trees by the crew, and the 
director follows closely and 
introduces the chemicals. By 
the time the last tent has 
been adjusted the first one 
can be removed and taken 
across to the adjoining row. 
An experienced crew, with 
one director, can treat 350 to 
400 5-year-old trees, averag- 
ing 10 feet in height, in a 
single night of eleven or 
twelve hours. The cost un- 
der such conditions averages 
about 8 cents a tree. 
With large trees the large 
sheet tents are drawn over them by means of uprights and pulley 
blocks. Two of these sheets are necessary for very large trees, the 
first being drawn halfway over and the second drawn up and made 
to overlap the first. In the case of trees from 24 to 30 years old and 
averaging 30 feet in height, about 50 can be treated in a night of ten 
or twelve hours with an equipment of 12 or 15 tents, the cost being 
127 

I'ic. 7.—Method of hoisting sheet tent. 
(After Craw.) 
orien, ie sr 
