SASH HOUSES. 75 



left open. For cuttings in the spring, however, 

 where some heat is necessary, the sides and ends 

 must be closed up. This can be done by means 

 of rough pine or hemlock boards, over which may 

 be nailed, on the outside, tarred paper. The ends 

 may be closed in the same way, leaving a door 

 at one end for entrance. In such cases it is 

 necessary to effect ventilation to loosen about 

 every third sash and hinge it at the top. Pieces 

 of leather can be used for hinges and each sash may 

 be raised and propped with a stick. A house of 

 this kind sixty feet long should have on each side 

 four movable sash for ventilating. The ventilat- 

 ing sash should not come opposite each other, 

 otherwise they cannot be hinged at the top. 



In order to heat a house of this kind for 

 spring use, run two one and one-quarter inch 

 pipes down each side, to be fed by a one and one- 

 half inch flow running under the ridge or down the 

 sash so as to get the proper fall. Such a house 

 may be used for growing the violets through 

 the season and is one of the most inexpensive 

 that could be erected. In such a case, however, it 

 will be necessary to run at least four one and one- 

 quarter inch pipes down each side, the same to be 

 fed by two one and one-half inch flows. 



Such a house for spring use sixty feet in 

 length, would cost approximately as follows: 



40 sash, 3x6 feet, at $2.00 each $80 oo 



Lumber for sides, ends, and beds 20 oo 



Nails, hardware, etc 2 oo 



Heating pipes and heating apparatus 50 oo 



Total $152 oo 



