Show VENTILATE THE HOG PENS An important feature of or this house hous Is the tho th ventilator which Is a small mall cap covering eO n a hole hol at the top and in the center of oC the tho roof rouf The Tho hole hol Is Ia I made by sawing sa wi off ot opposite end ond on of or two root roof boards anti and covering cOr It with a n cap so 10 arranged as to leave openings 5 S b by 12 1 AN WIGWAM non mior COT Inches Inch s on oj o each side Ire of oC the time roof Is nl ventilation for two or throe three animals when all 31 tho ho doors doon are shut and If It more t 1 Is desired It Il can call be Ijo s secured by J opening th the small sliding door doom III in the rear This sImple plan of oC ventilation avoids any an direct drafts upon the th animals and proves very cry efficient |