WOBURN PINERY. 
343 
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Shallots and Garlic must be taken up, if not already removed. 
Choose dry weather for the purpose, and spread them out until suf¬ 
ficiently dry to tie up in hunches. 
Siveet and Bitter Herbs are readily propagated hy slips or cut¬ 
tings. And on fine days they should be gathered, to dry for winter 
use; let this be done just before they come into flower. 
Spinach .—The prickly and Flanders should be sown for a full win¬ 
ter crop, not later than the middle of the month. 
Turnips should be sown in the first week for a main crop at the 
end of autumn, and about twice more to succeed them. 
ARTICLE IV. 
CONSTRUCTION OF THE PINERY, AT WOBURN ABBEY, 
As Figured and Described in the Hortus Woburnensis. 
BY MR. FORBES. 
The annexed Ground Plan, (Fig. 21,) and Section (22), will illus¬ 
trate the principle upon which the Pine-House at Woburn Abbey is 
erected. It is executed from the designs of W. Atkinson, Esq. 
This house is 65 feet long, and 13 feet wide, in the clear; and is 
divided into two divisions (one of which only we have figured.) 
The sashes and rafters are wood, and fixtures; consequently air is 
admitted by the ventilators ( d , d.,) that are placed in the top of the 
back wall, and along the centre of the front wall, which together with 
opening the doors, will admit a sufficiency of air in the summer sea¬ 
son, for the Pine Apple. The house is heated by hot water, with 
separate boilers and pipes to each division ; there is one boiler for 
each division, which is placed in a recess about the centre of the back- 
wall, (a) the dimensions of which are two feet six inches long, one 
foot six inches wide, and one foot eight inches deep, of an ob¬ 
long square. There are two pipes (6. b. see Section,) attached to 
each boiler, one near the top, and the other at the bottom; the upper 
pipe is round, until it reaches the front of the house, when it forms 
a square of 12 inches broad by four inches in diameter; the lower 
pipe is circular, and four inches in diameter. These pipes convey 
the water from the boilers across the ends, and along the front of 
the house to the reservoir belonging each division as ( d ., see Ground 
Plan,) which is of the same dimensions as the boiler, and is filled 
with water, flowing from the boiler; os the pipes, reservoir and boiler, 
are placed all on the same level, and filled about equally, within half 
an inch of the top, so as to allow room for circulating the heat regu- 
