THE FORCING GARDEN. 



G69 



autumn ; and as long as the fruit remains upon the vines, 

 give only such fire-heat as will prevent the effects of clamp 

 from destroying the fruit. 



The latter sorts of grapes are thus preserved till long after 

 Christmas. Arkwright, a writer in the Hort. Trans., has treated 

 this subject more systematically, by gradually habituating his 

 vines into a state of late bearing. He chooses for that pur- 

 pose the later kinds of vines, and grows them in houses 

 used alternately for pines and vines. About the middle of 

 February, he removes his pine-plants into another house, 

 and the preceding year's crop of grapes being gathered, he 

 takes down the glasses so as to admit the fi'ee access of air 

 at all times till the end of April, when the buds of the vines 

 begin to swell. At this time, he applies a little fire-heat 

 during the night in cold or cloudy weather, and air is freely 

 admitted. At this time, he again brings in his pine-plants, 

 where they remain till the following February. By this late 

 and slow process, the graphs do not begin to ripen till towards 

 the end of October ; and some of the very late kinds not till 

 Christmas. When he has occasion to introduce a young vine 

 into the houses where his late grapes are grown, it is found, 

 by the second or third year, to have lost its disposition to 

 break into leaf at the accustomed season, although treated 

 exactly like the other plants in the house. So powerful are 

 the effects of habit. His general treatment of the vines, in 

 regard to pruning and training, does not differ from the 

 common practice. 



FORCING CHERRIES. 



The temperature in this compartment should be regularly 

 attended to, and not allowed to exceed 50° by fire-heat during 

 the day ; after the admission of plenty of air, it may be al- 

 lowed, during the day, to reach G0°, but not higher. Air 

 should be admitted regularly every day ; and when the weather 

 is unfavourable for its free admission for more than one or 

 two days together, let the fires be kept slightly up, to allow the 

 sashes either being opened, or the ventilators, if the house be 

 aired by those means ; for nothing is so injurious to cherries, 



