480 FEEDING ANIMALS. 



ing pens. The floor is placed two feet above the ground. 

 Each pen is to be 10 x 15, accommodating ten hogs. The 

 feeding floor is 8 feet wide with a tier of pens on each side. 

 This plan of swine house is intended as the most conven- 

 ient form for economy of labor in cooking the food for a 

 large number of hogs. It is also most convenient for any 

 other system of feeding, if done in pens. A trough, 15 feet 

 long, next the feeding floor, must be provided for each pen, 

 with a swing door over each trough, to shut the hogs off 

 while the feed is being put in. The hogs come out of the 

 pen over the trough on a light bridge through a door in the 

 partition next the feeding floor. 



A SELF-CLEANING PEN. 



Still regarding the greatest economy of labor, we would 

 construct the floor as follows : Next and under the trough 

 is a strip of solid floor 2 feet wide ; and 5 feet next to this 

 is an open, slatted floor, composed of oak strips, IK inches 

 thich by 2K inches wide, set edgewise, 1 inch apart, for the 

 passage of the manure below. And next the wall is a strip 

 of tight floor, 3 feet wide, for bedding, slanting IK inches 

 toward slatted floor, so that water will run to slats. Under 

 the open, slatted floor is a sliding-board, set slaating to the 

 outside wall, along the side of which wagons can be driven, 

 and, letting down a long swing door, the manure shoveled 

 in and carried away. The pen cleans itself, all works 

 through the slats, and no manual labor is required. If bed- 

 ding is used, it may be placed on the tight floor next the 

 wall for the hogs to lie on. Seldom any droppings will fall 

 on the tight floor. To secure pure air, put a ventilator 

 2x4 feet in the ridge, every twenty feet, with slats on side 

 to prevent storm from driving in. For the admission of 

 fresh air, a slide 7 x 14 inches may be placed in the outside 

 wall between each two pens, one foot above the floor, which 

 can be opened or closed at pleasure. This will cause a cir- 



