65 



feet high at the rear. It is boarded with cheap lumber, but all cracks are 

 securely battened. It should be practically wind and rain proof. The opening 

 i? at one corner, and the pen should be set with the opening towards the south. 

 A door is not necessary. Plenty of bedding should be supplied and the pen should 

 be banked up outside with fresh horse manure to a depth of about two feet, in 

 order to prevent draughts about the floor. This method of housing sows is better 

 than close confinement in warm pens, and will be found to answer very well when 

 other means to provide shelter and exercise are not available. 



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The A-shaped Pen.— The accompanying sketches (Figs 22 and 23) show 

 a convenient portable pen, which may be used for a sow and her litter, or as a 

 shelter for two or three sows. The description is taken from Bulletin 153 of 

 the Wisconsin Experiment Station. The pen is constructed by nailing inch 

 boards on six joists, each 2 by 4 inches, and 7 feet 8 inches long, for the floor. 

 Beneath the joists are nailed three stringers, each 2 by 6 inches, and 8 feet long, 

 which serve ae runners for moving the house. Next, a plate piece 2 by 8 inches, 

 and 9 feet 4 inches long, is spiked to the ends of the joists, having the bottom 

 of the 2 inch by 8 inch even with the bottom of the joists, which will allow it to 

 project 3 inches above the floor. It will also extend out 7 inches at each end. 



