44 THE GRAPE CULTUKIST. 



will be needed under it to keep its temperature equal to 

 the others. Again, in place of frames through the cen- 

 ter, a table may take its place, on which to set the plan ts 

 after they become sufficiently rooted not to need so 

 much heat or so confined an atmosphere as while young. 



The inside frames are only necessary while the cut- 

 tings are rooting, and for a few days after the first shift, 

 but they are indispensable when a number of varieties 

 are to be grown, for the air cannot be kept sufficiently 

 confined in a large house to insure success with all. To 

 be sure, there are varieties that will grow from single- 

 bud cuttings without recourse to frames, but with such 

 as the Delaware, which seldom shows any roots until the 

 young shoots appear, it becomes a very difficult matter 

 to prevent a too rapid evaporation from the young leaves 

 in the open house. If this takes plac3 of course the 

 cutting dies, for, until the roots are produced, the young 

 growth is supported entirely upon the alburnous matter 

 contained in the cutting. 



The frames are ventilated by raising one end of the 

 sash, as shown. They should be made one foot deep, 

 and of good, sound plank. The pipes must be entirely 

 shut in, so that the greatest heat in the house will be 

 under the frames ; but there should be small doors 

 placed along the entire length, opening into the passage 

 ways, which may be opened to let the heat escape into 

 the house when necessary to raise its temperature, or to 

 lower that under the frames. The passage ways between 

 the beds should not be less than two and one-half feet 

 wide, and three feet is better. The frames should not 

 be over four feet wide, as it would then be inconvenient 

 to reach across them. A house eighteen feet wide will 

 allow of three rows of frames, and two passage ways of 

 three feet each ; or the outside frames may be but three 

 feet wide, and the center one, as it can be reached from 

 both sides, may be six feet. 



