136 PRACTICE OF POULTRY-HOUSE CONSTRUCTION 
doors. This utilizes all the space and compels the attendant to 
mingle with the birds where he is able to study their needs and 
conditions much more thoroughly (Figs. 89 and 90). 
YR ta cy 
Courtesy Michigan Agricultural College. 
Fic. 89.—Laying house with two-thirds span roof. A neat house. The cost is greater and 
the front lower than with the shed roof. 
In the centre of the south side is a glass door made by hinging 
two 9-light 9 x 12 inch glass windows. This affords fifteen square 
Photo from Michigan Agricultural College. 
Fia. 90.—Interior view of house, Fig. 89, showing arrangement of nests and perches. 
feet of glass to 324 square feet of floor space. The door ean be 
epened for cleaning purposes. 
The open-front method of muslin ventilation is used in this 
