TOBACCO BARNS AND SHEDS. 



199 



open. The arches, however, are extended two feet be- 

 yond the ends of the stoves. Openings are left above 

 the crown of the arches and immediately above the stove 

 doors, to admit fresh air between the arches and the 

 stoves. These openings are closed with coverings when 

 not needed. Conduits are provided, also, for admitting 

 cool air to the basement. 



For the superstructure, sills are set in the walls four 

 by six inches, the four-inch sides resting on the walls. 



FIG. 54. SIDE VIEW OF GERMAN FRAME. 



Joists are put in, on which a slatted floor is laid, with 

 spaces one and one-fourth inches wide between three 

 and one-half inch slats. This slatted floor extends only 

 to within two feet of the walls on two sides and one end. 

 The remainder is closely laid, except on the end contain- 

 ing the door, which is laid in strips. The studding is 

 placed 18 inches apart. The roof is one- third pitch. 

 The sheeting is composed of square-edge boards, or 

 planks, one inch in thickness. Shingles are used for 

 roofing. A ventilator 15 feet long and eight inches 

 wide, is placed on the crest of the roof. 



