67 



the plan shown, the runners are fastened to the structure, but they could be 

 attached by means of bolts, so that it would not be diflficult to renew them. An 

 application of tar would save them many years. 



Portable Cold Weather Farrowing Pen.— The farrowing pen shown 

 in the illustrations (Figs. 24 and 25) is the one referred to when discussing the 

 management of the sow. The pen is 8 feet square and five feet from the ground 

 to the eaves. The base, the corner posts, and the two plates are made of 4-inch by 

 4-inch scantling, and the remainder of the frame is made of 2-inch by 4-inch 



2. ' X Ai 



II X IH 



10. f. I i*- 



I 1 K / '*- 



Li K u 



<^ 



l'- 9' 



Fig. 24.— Side view of portable farrowing pen. 



scantling. The dotted lines in the drawings show the position of the scantlings 

 comprising the frame. 



An opening should be made in the gable at the end farthest from tlie ventil- 

 ator. Then, if a few strips are laid across the plates, straw can be shoved in 

 through the opening, filling the peak of the roof, and making the building warmer. 

 As shown by the dotted lines, the ventilator shaft is run down to the ceiling. 



The roof may be shingled, or made of boards with battens over the cracks. 

 The battens are not shown in the drawing except in the end view of the roof. 

 Outside, the pen is single boarded, with battens over the cracks. Inside, tarred 

 paper may be put on the studding and then tightly boarded, but a better job will 



