Jpr.] TTTE FORCING GARDEN. 705 



tifully supplied with water during the whole time such heat is 

 used, for the suppression of spiders and refreshing of the 

 foliage. 



Hollow walls, heated by Mr, Atkinson's hot-water system, 

 will be much less liable to accidents from over-heating, as no 

 such occurrence can possibly take place where hot water is 

 applied, and the distribution of heat is so uniform, that all 

 parts of the wall will be heated to the same extent, which is 

 not the case where hot-air or smoke-flues ai'e used. 



FORCING VINES. 



The temperature in the grape-house should be continued 

 with regularity, as near to 75° as possible ; and if success have 

 attended the management, the fruit will be set by the begin- 

 ning of the month, and be swelling fast towards the end of it. 

 Larger quantities of water should now be regularly given to the 

 vines at their roots, and occasionally liquid manure should be 

 applied to them also, both to their roots within the house and 

 to the border without, as far as the roots may reasonably be 

 expected to have extended themselves. This sort of manure 

 is highly beneficial to the vine which is termed a gross feeder, 

 and from the weight of its fi'uit, the number and length of its 

 branches, it seems to require, at first sight, a greater share of 

 nourishment than any other plant which inhabits our forcing- 

 houses. The great fertility of the celebrated Hampton-Court 

 vine is said to be principally owing to the roots having ex- 

 tended themselves into a common-sewer, in the vicinity of the 

 garden ; and numerous similar accounts are given us of vines, 

 celebrated for their great productiveness, deriving supplies of 

 nourishment from less delicate sources. 



However, a great weight and quantity of grapes are not 

 always to be preferred, particularly when the means used to 

 acquire that weight and quantity are prejudicial to the flavor 

 of the fruit. Grapes, less luxuriantly fed, are generally ac- 

 knowledged much higher flavored, and possessing a great 

 degree of saccharine matter, of which larger and more showy 

 berries and bunches are deficient. 



4x 



