FRAMES AND GLASS-HOUSES. 



69 



two feet more; by which device the house would be well sunk in the 

 ground. A single glass roof is fastened over the sunk part, and 

 ventilation is provided by a board hung upon a hinge at the back 



FIG. 82. Poor Man's House. 



My Poor Man's House is forty-eight feet long, and the width of 

 the glass roof is ten feet, the door being at one end (fig. 83). Perhaps 

 in future structures, where there is plenty of earth for the back, it would 

 be desirable to increase the width to twelve feet. Vines are planted 

 which yield abundance of the highest-flavoured grapes, lasting from 



FIG. 83. End of Poor Man's House. 



July, till November, when the vines are cut, and the house is filled 

 with geraniums, azaleas, and camellias: these give lovely flowers till 

 advancing spring produces plenty of flowers in the open air. 



The house is lighted exclusively from the roof, and thus a 

 rnaximum of light is secured with a minimum of cooling surface. 

 From the earthen walls, the air is always kept in a proper hygrometric 



