478 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 11 
panels and diagonally through the end of the rafter tie, with a washer 
and nut on the inner side. Fit the ridge pole of two beams of 2 x 4 in. 
spruce 10 ft. long, to be halved together by a 6 in. splice fastened by 
two 24-in. bolts. Fit four corner angle braces of 2 x 3 in. spruce 3 ft. 
5 in. long, halved on lower end for fastening to sill with 4-in. bolt, the 
upper end to be cut at the proper angle to fit against side screen and 
fastened by 4-in. bolt with its head on outer side of screen. Set the end 
rafters flush with the end of side screens and end of ridge pole; set the 
intervening eight rafters at such points that the abutting edges of two 
roof panels will meet on the center of each rafter. Fit the door frame 
on the center of front sill, of 2 x 3 in. spruce 6 ft. 7 in. long, the lower 
ends halved on to the inner face of sill; the upper ends halved into the 
door head of 2 x 3 in. spruce 3 ft. 10 in. long, the ends of door head cut 
at an angle *to fit against the under surface of the rafters and fastened 
by 24-in. screws. Fit the rafter ties of f x 3 in. spruce or pine, 4 ft. 9 in. 
long, with the ends cut at the angle of the top of the rafters. These 
are fastened by 3-in. bolts, at the same level as the door head forming 
the top of door frame, to the face of each of the remaining pairs of 
rafters. No supporting posts under the ridge are required as the 
whole roof is trussed. 
The roof is covered by ten panels 4 x 8 ft., the frame of each is built 
of four strips of pine J x 2 in. and 7 ft. 64 in. long, set up edgewise; to the 
ends nail a strip | x 2 in. and 4 ft. long; the end pieces have nine f-in. 
holes to allow ventilation from eaves to ridge between an outer and 
inner single sheet (4x8 ft.) of wallboard nailed to each side of the 
frame. Heavy J-in. stock should be used for the outer surface while 
the next thinner grade will answer for the inside; this wallboard is 
fastened with 2-in. wire nails having broad, flat heads, driving one 
every six inches around the outer edge of frame and one every twelve 
inches into the two interior stringers. Eight strips of pine batten 
f x 24 in. are required. Each one has a groove 4 in. wide x J in. deep, 
cut 4 in. from the edge of strip, and is nailed to one edge of a panel on 
the upper side, its center being over the joint formed by two abutting 
panels. On the opposite upper side is fastened a bead f in. wide and 
J in. high, with 1-in. brads in such a place as to fit into the correspond¬ 
ing groove on the next panel for the purpose of preventing the rain 
from beating under the batten and down between the abutting panels. 
The roof panels are fastened in place by two 6-in. bolts in each, one 
in the center of the top through the panel and diagonally through the 
ridge pole, and one through the side of frame and rafter, two feet from 
the bottom. These panels and building frame are covered with two 
coats of white paint with the addition of a coat of spar varnish on the 
outside of roof. The saddle boards are made up of J x 5 and 6 in. pine, 
