DREER’S VEGETABLES UNDER GLASS. 75 
short range of several very extensive rhubarb forcing houses, 
one of which is partially represented in the engraving. The 
sides of this house are covered with heavy paper, and provi- 
sion is made for steam heating. When the sashes are in 
place the building can be heated quite easily, as the heat is 
not turned into the house until the winter is nearly over. 
The general details of construction can be learned from the 
picture. 
The sashes 
in summer, 
RHUBARB FORCING HOUSE OF £. J. FAUNCE, ARLINGTON, MASSACHUSETTS. 
[Building 31 x 264 feet. ] 
This is perhaps a fair type of the great rhubarb forcing 
houses in New England. ‘They vary in construction. Some 
are heated and some unheated. In the latter case the glass 
is merely for protection and for holding the warmth of the 
sunshine. Some have sloping roofs and some flat roofs. 
In the latter the rain finds its way from each sash to the 
ground below. 
