Cold Vegetable Houses. 69 



double thickness, like the sides, and with a layer of building paper 

 between. The door is tightly fitted in this end. A row of stakes 

 or posts capped with 2 by 3 (or 3 by 3) scantling under the 



Frame of Cold Forcing House. 



junction of the two tiers of sashes on each side, and a similar 

 support for the peak, give a solid foundation for the rafters and 

 sashes, and a cap for the peak completes the structure. The 

 frame appears as shown in illustration. The sashes are fastened 

 to the rafters in such a way that they can easily be taken 

 off to be stored away at the beginning of the warm season. 

 Every other one of the lower tiers should be arranged so that 

 it can be slid down, to give ventilation as required, and be held 

 in place by a simple iron button, as illustrated. I need 

 hardly say that it is of greatest importance to have the whole 

 structure snug and tight, for success depends mostly on the 

 effective retention and utilization of the heat accumulated. As 

 little as possible of it should be allowed to escape. 



COST OF HOUSE. One of my former neighbors in New Jersey 

 has two such houses in successful operation, and he is still adding 

 to his area under glass. They are forty sashes, or a little over 

 1 20 feet, in length each, covering at 

 least 2.500 square feet of tillable 

 ground. The 160 new sashes for 

 each, ready for use, were bought for 

 $300. The lumber and the frames STATIONARY SASH 

 and glass for the south end cost 

 about $ 100, and figuring the labor ot 

 putting up at another $100 (in the 

 present case there was no cash out- 

 lay connected with it, as the owner 

 and his help did all the work them- 

 selves): we have an aggregate expense of $500 for each building, 

 or $100 for each 5 square feet of tillable ground. The cold-frame 



SLIDING SASH. 



RAFTER 



