352 FORCING DEPARTMENT. 



sufficient to keep the temperature of the Vinery as 

 low as it may be required. 



Each of the moveable lights is furnished with a 

 chain and small wind, which draws them up with the 

 greatest facility. The trellising is of wrought-iron 

 bar, and consists of about one quarter of an inch in 

 diameter, and is placed within nine inches of the 

 glass at the front, or lower end of the rafter, and 

 about twelve inches from it at the top. 



Each division is supplied with a separate boiler, 

 &c. which are fixed in a niche in the back-wall, as 

 indicated in Plate 17 ; and the pipes proceed across 

 the ends of the houses, under the floor level, to the 

 front, where they run parallel to the front wall, and 

 are connected with the reservoir, at the extremity of 

 the house. 



ON THE CULTIVATION OF THE VINE. 



1. FORMATION OF THE BORDERS. 



In the preparation of the Vinery borders, much of 

 our future success will depend. They should be, in 

 the first place, rendered perfectly dry, and formed, 

 so that no stagnant water will lodge on the sub-soil. 

 In the formation of the Vine borders at Woburn, 

 the ground was excavated to the depth of nearly 

 four feet, and about 25 feet in width, allowing 

 about two feet of a fall from back to front, in order 

 that the wet might have a rapid descent into a drain 



