Cost of Sash 49 



eight hundred tomato or cabbage plants can be grown 

 under one sash. In general, one may expect to gain 

 one month on the crop of hardy things like cabbages, 

 and two to three weeks on tomatoes. In order to gain 

 two weeks on the crop, however, it is necessary to 

 gain three or four weeks on the sowing. In extra- 

 good hotbeds, greater gain can be secured ; but it is 

 not common. 



In figuring on the amount of glass required, the 

 gardener must consider that many of his plants may 

 fail after they are set in the field. There are risks 

 of frost, cold rains, droughts, worms. He may lose 

 plants while they are still in the frames. The grower 

 should start at least half more plants than he ex- 

 pects to raise. The surplus may be left in the 

 frames until the transplanted subjects are thoroughly 

 established. 



The general estimate of cost per sash is $4, this 

 amount including the cost of one -fourth of the frame 

 and the covers. A well-made mortised plank frame, 

 costs $4 to $5. A sash, unglazed, costs from $1 to 

 $1.25. Glazing costs 75 cents. Mats and shutters cost 

 from 50 cents to $1 per sash, depending upon the 

 material used. 



The following sample estimate, by a gardener, illustrates the 

 method of casting up one's outlay for the season's glass. It is 

 an estimate for a market-garden of one acre, in which it is desired 

 to grow a general line of vegetables. It supposes that half of 

 the acre is to be set with plants from hotbeds. 



One -eighth acre to early cauliflower and cabbage, about 2,000 

 plants ; if transplanted would require two 6 x 12 frames, from 



