48 THE CONSTRUCTION OF THE FORCING-HOUSE. 
feet high at the ridge, with no glass on the sides, on post 
wall, can be built for $1,000 to $1,200, steam heating plant 
complete, if the workmen about the place assist in the 
construction. 
A forcing-house 50x 4oo ft., broken span, with the rear 
roof 20 ft. wide and the front one 32 ft. wide, with the front 
wall 4 ft. high and the rear one 8 ft. high, 17 ft. high at the 
ridge, on post walls, glass 20x30 inches, sash-bars 2x 3 
inches, was built, and fitted with steam, for $6,000. 
The house shown in Figs. 5 and 6 (the property of Fred. 
Busch, Minneapolis) is 60 x 300 ft., with a mushroom shed 
16 x 300 ft. on the back. The total direct cash expense of 
this structure was $3,300. To this has to be added the 
work of the regular hired men in doing all the grading, the 
setting of the pipe posts for purlines, half of all the glazing 
work, all the work of steam fitting, and half of the paint- 
ing ; also 4,000 ft. of old pipe which had been used in hot- 
beds, and all the glass used in the gables and which had 
been taken from an old house which was torn down. The 
estimated expense of all this extra work and second-hand 
material is $700, making the total cost of the house, shed 
and all, $4,000. 
The range of nine houses shown at the left in Fig. 8, 
and again in Fig. g (also the property of Mr. Busch), each 
house 20x 90 ft., cost, complete, as Iam informed by the 
owner, $3,600. This is an unusually low cost, being only 
$400 per house. 
