IO0O HFUMIGATION MHLHUDS 
ventilate either room by removing aslide. In addition 
to these roof-flues there are also two small doors, 3 x 
2% feet, one for each large room, on the opposite side 
of the building, which, when opened, insures quick 
ventilation. 
In the construction of this house, first a good 
FIG. 53—DOUBLE ROOMS BUILT IN END OF PACKING-SHED 
strong frame was built and covered outside with one 
and one-quarter inch twelve-inch Virginia pine boards, 
Y% x 4 inch battens. The interior, including the floor, 
was lined with two-ply cyclone paper, over which 
four-inch flooring was laid. ‘The roof was covered 
with heavy roofing paper, tarred and graveled. The 
doors are 6% x 3% feet, made double, refrigerating 
