740 



IOWA DEPARTMENT OP AGRICULTURE 



Table I — Movable Houses Tested. 

 (Description of houses used aind w'ei&ht of hogs sheltered.) 



Fig 



36. A Metal House. Front and Side view: all doors open. This house 

 has seen less than a year of light service. 



Note that the Series "A" houses, Nos. 1 and 2, are quite comparable 

 as are those of Series B, Nos. 3 and 4. This side (east or west) and 

 south surface areas are figured to give one an idea of the sunned portion. 

 The sunshine is instrumental in the raising of the temperature, shining 

 directly as it does upon the roof, sides and south end. The liouses 

 were all placed in a row, having the entrance doors facing the south, 

 and arranged in such a manner that all were under uniform conditions. 



Three hogs of approximately 150 pounds average weight were con- 

 fined in each house eight days, they being fed and watered therein. 

 In the meantime, after a couple of days' preliminary feeding, tempera- 

 tures were observed and recorded. 



That the range in temperature should be greater within the metal 

 houses than the wooden is not particularly surprising when one con- 



