164 Milady's House Plants 



those of the permanent windows; thus, in making the 

 posts (C) and the transom rail (E) the surfaces should 

 be left quite plain and free from fixtures of any kind 

 so that the second window will slip easily into place 

 snug up to the permanent ones. This vfill give an 

 inch or so of air space between the inner- and outer 

 glass which is quite sufficient. The small upper 

 transom windows need not be double glazed as they 

 are small in area and far removed from plants. 



Ventilating the Sun Parlor 



Proper ventilation is the next in importance. If 

 the room is small, in the nature of an exaggerated bay 

 window, very little ventilation is necessary in the 

 Winter time outside of that which is obtained by the 

 open communication with the adjoining room of the 

 house. In any case, ventilation from out of doors 

 should be secured by means of transoms (F) set in the 

 upper part as shown in the diagram. These should 

 hinge on the center so that when open, the lower 

 part of the window is out and the upper side in (see 

 diagram). By this arraiigement, the cold air rushing 

 in is deflected upwards by the inclined surface of the 

 window and is slowly diffused through the room and 

 warmed before it reaches the plants below. This is 

 an important consideration. At least half of the 

 upper row of windows should be fitted for ventilation 

 purposes and. if all were available, so much the better 

 as they could then be used to advantage in the warm 

 days of Spring and early Fall. There are plenty of 

 simple devices obtainable for opening and closing 

 these out of the way windows so that they need not 

 be inconvenient. 



