PART V. CULINARY GARDENING. 295 



be found preferable and more beautiful; the most decisive 

 proofs of which I have given from facts which took place at 

 Dairy. See the Treatise on Hot-houses, page 186. 



2. Those for vines may be of any form, and large or small 

 according to the period at which they are intended to be brought 

 into fruit. A double roofed house, with an inner roofing, will 

 always be found most economical for a general crop. Vines 

 clothed with foliage, and enlivened by bunches of fruit, are so 

 beautiful and accommodating, that they should be introduced 

 into every kind of glass-house in a greater or lesser degree. 



3. Pines are commonly grown at an immense expense, incur- 

 red chiefly by the tanner's bark and leaves, which require such 

 frequent renewals, and occasion so much labour in moving and 

 replacing the plants, &c. This, with the risk which always at- 

 tends heat added by fermentible substances, has discouraged 

 many from growing them. In the treatise already mentioned, 

 I have described and delineated a plan which would almost en- 

 tirely remove these objections. I am now happy in being able 

 to refer to a house constructed by me upon the exact princi- 

 ples, viz. the pinery at Prinknash ; I shall here only refer to 

 Plate 11. fig. 3, which is a section illustrative of the mode 

 adopted, and may serve to impress the plan upon the memory 

 of the reader, a a a aie the smoke flues; b the air flue; c a 



