164 HARRIS ON THE PIG. 



roof is of light spars, covered with felt, but thin boards 

 would be better and cheaper in the end. The pigs thrive 

 in an extraordinary manner in this shed, which is divided 

 into nineteen pens, of different sizes, some of which I find 

 useful at lambing time to put ewes and lambs in at night." 



DESCRIPTION OF ISOMETRICAL PLAN OF PIG-SHEDS, (Fig. 

 42,) SHOWING THE INTERNAL ARRANGEMENTS. 



" Length of shed, 60 feet ; breadth, 18 feet, inside ; 

 height of walls (of brick], 6 feet ; height of pens inside, 

 3 feet, 6 inches ; thirty-three posts, 9 feet long, and 3 

 inches square out of ground ; five posts, 5 feet long, by 

 3 inches ; two strong posts for doors, 6 inches square. 



Pens. 

 4 rails, 13 feet long, 3 inches by 1 inches. 



Q ti " " " 



14 " 8 feet, 4 in., " " 



8 " 7 feet " " 



4 rails 6 " " 



4 <' 5 " " 



600 poles, 3 feet 6 in. long, 3 in. by 1 inch. 

 90 feet boards, 11 in. by 1 inch. 

 150 boards for doors, 11 in. by 1 inch. 



" Wood-work for Hoof. Three boards for the center, 

 to nail rafters to, 20 feet long, 9 inches deep, and 1 inch 

 thick ; sixteen rafters, 13 feet long, 3 inches by 2 ; 58 

 rafters, 13 feet long, 3 inches by 1 ; 120 feet of rails, 3 

 inches by 1|-, to lie on wall, to nail rafters to ; eight rails, 

 20 feet long, 3 inches by 1|- ; ten lengths of felting, 

 60 feet long; 1,660 feet boarding, required 11 inches 

 broad. 



" There are air-holes in the brick walls to every pen, on 

 one side ; on the side where the folding doors are set, 

 there are four air-holes, and two holes for throwing the 

 manure out. One end of the shed is boarded half way 



