■250 GARDEN MANAGEMENT. 



and a half at each side, near the glass, is allowed for the hot- water pipes, there 

 will be room left for two good pits (fig. 6). 



675. It is vei-y obvious that, besides these specific uses to which the invention 

 can be applied, it is apphoable to almost every variety of gardening structiu'e. 

 The glass used is 16 oz. to the foot, and the sashes are made of the best red 

 deal, well seasoned. By using in succession the 12-, 14-, and 16-foot lights, an 

 extensive range of houses suited to every cultural purpose is formed. They 

 are equally available for the side and top lights of a conservatory, in connection 

 with the ridge-and-furrow principle of roof, in which the system of ventilation 

 would be sufficiently effective. 



676. In houses of great length, all the ventilators on one side can be opened 

 at once from one end of the house to the other, by a very simple contrivance. 

 This mode of ventilation has the advantage of avoiding all draughts of wind ; 

 for if it is blowin on one side, the opposite ventilators can be oiDened. When 

 the temperature 1 very hot, perfect cu'culation of the air is obtained by open- 

 ing the ventilators on both sides. 



677. The following are the prices of a few of these bouses, which we give 

 merely as an example of the whole. A lean-to house, painted with three 

 coats of good paint, and glazed, costs, according to the length of house and 

 height of sash, — 



Length. 



20 ft. 7 in. 

 31 3 

 41 11 

 73 11 

 105 11 



Span-roofed houses, with water-troughs, doors, and ends, complete : — 



20ft. 7in. £24 £32 £42 £57 £C3 10 



42 5 53 75 4 91 12 



53 17 G6 15 93 8 114 14 



S7 10 106 15 148 184 



121 5 147 203 253 6 



These prices neither include carriage, nor the cost of erection, which, of course, 

 both depend upon distance, and other considerations. Any fm'ther particulars 

 will be furnished by Mr. Hercman, 7, Pall-Mali East. 



678. The erection of these houses is startlingly simple, and one 01 their 

 great recommendations : the sashes being all made to an exact measurement, 

 each one is alike available. The site and the plan of the house being settled, 

 if it is to have a made border outside, a sufficient space of groxind is exca- 

 vated to the necessary depth, and a setting-out rod prepared, which must be 

 of the length of the intended house. This rod is laid on the ground, and on 

 it the exact width of each sash, which will be either 4 feet 7 inches or 4 leet 



