96 



being placed where it will be least likely to be broken, and where it does 

 not obstruct any part of the window opening, an important matter in 

 the summer season. Heavy hinges are necessary. Fig. 44-$ makes re- 

 moval necessary for summer use and cannot be quickly closed when- thus 

 removed. Fig. 44-C is rather difficult to move because so heavy. Figs. 

 44-D, E, F, G, and H cannot be removed or swung out of the way quickly, 

 if at all. Figs. 44-D, G, and H are likely to be broken by heavy winds. 

 Figs. 44-G and H make it difficult to have wire over the window opening 

 either inside or out. With Figs. 44-$, D, E, F, G, H, and / the windows 



FIG. 44. Types of windows and ways of hanging them 



cannot be used conveniently for passageways to clean, spray or litter the 

 pens. Figs. 44~ and F are likely to fall and break, and Fig. 44- G to 

 break loose from the hinges. 



The doors 



A good door must be wide enough to permit the attendant to enter 

 conveniently with pails or baskets in each hand, and to be opened and 

 closed with the least possible loss of time. 



Fig. 45 shows methods of hanging doors. Figs. 45-^ and B differ 

 only in the fact that A swings into the room instead of against the end, 

 and requires the person entering to open the door wider, which is likely 



