BUILDINGS 287 



feet by two feet six inches. In the case of very large sows, 

 it would be better to make the door three feet high. 



The dotted lines in the drawings indicate the scantlings 

 which constitute the framework of the pen. 



The ventilator is made by cutting the upper ends from two 

 roof boards, opposite one another. Then 2" by 2" pieces are 

 nailed on top of the battens on each side of the opening, meeting 

 at the top, and boards are nailed on top of these strips on each 

 side of the roof. The upper ends of these boards meet at the 

 top, and the lower ends come an inch or two past the lower sides 

 of the opening. 



It is recommended to have a door at the back of the build- 

 ing, similar to the one in front, for purposes of ventilation in 

 hot weather; also a 'small opening near the peak at the rear 

 of the building, which could be covered with a slide, and used 

 to assist ventilation under some circumstances. 



Owing to the fact that the runners are likely to decay, 

 some prefer to have them not fastened to the building, so that 

 they can be renewed conveniently. , In 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 difficult 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. 68, 69) is the one re- 

 ferred 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" by 4" scantling, and the remainder of the frame is made 

 of 2" by 4" 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 the ventilator. Then, if a few strips are laid across the 



