and Forcing-Department at Sjjon. 5 1 5 



References to the Plan of the Fokcing-Houses at Syon. (fg. 102.) 



A, The general elevation > a b, the two peach-houses and three vineries ; 

 cd, the pineries and general forcing-houses ; e, the gardener's rooms, and 

 garden-library. b c. The general ground-plan. 



1, 2, 5, Pine-pits, with iron and copper roofs, ends, and doors, the section 

 of which may be seen at d. In this section will be observed the indication 

 of the canvass blind described p. 510. On the back flue of these houses, 

 cucumbers are grown in boxes all winter, trained on wires down the roof. 



4, Peach-house, with table-trellis, the section of which may be seen at £. 

 g g, rubble stratum; k/i, air-shafts to rubble stratum ; i, garden-walk. 



5, Early vinery, the section of which may be seen at f. gg, rubble stra- 

 tum ; hh, air-shafts ; and i, garden-walk, as before. 



6, Medium vinery, the section of which may be seen at g. gg, rubble 

 stratum, &c., as before. 



7, Early vinery; and 8, peach-house, with table-trellis; exactly the same 



as 4 and 5 Th^e five houses have the roofs, ends, and doors of iron and 



copper; all the trellises of iron, and also the cisterns and pathway. The 

 roof trellis of the vineries is formed of wire in meshes, 24 in. by 8 in., the 

 horizontal wires being 24 in. apart, and the sloping wires 8 in. The distance 

 from the glass is 1 5 in. at the lower, and 1 6 in. at the upper part, of the slope. 



9, 10, and 11, Pineries and general forcing-houses, the roof, ends, and 

 doors of wood. Those structures having been newly erected on a diflerent 

 part of the premises, before Mr. Forrest came to Syon, it was judged best 

 to retain them. Their section is shown at h. 



12, 12, &c. The furnaces and stock-holes to all these houses. 15, Tan- 

 shed. 14, Mushroom-houses, with potting-benches in front. 15, Room 

 for sashes. 16, Packing-room. 17, 17, Journeymen's bed-rooms, entered 

 through the foreman's sitting-room. 18, Foreman's sitting and business 

 room, with his bed-room and the garden-library over. 1 9, Room for shutters, 

 sashes, mats, &c. 20, Room for flower-pots. 21, Potting-shed, 



22, Room for keeping esculent bulbs and roots. 2.3, Tool-house. 



24, Steam-boiler, a pipe from which leads the steam intp every house, 

 where it is delivered at pleasure, to fill the air with vapour, by the 

 cocks /c k k, &c. The advantage of having the steam-boiler heated by a fire 

 which has no connection with the houses is, that steam can be applied in the 

 summer season, when the fires are left off, without raising the temperature 

 of the house. In the steam-boiler is a coil of pipe (p. 454.), connected at 

 one end with the supply cistern, and at the other with the watering cis- 

 terns (///), by which, at pleasure, hot water is conducted into the early 

 forcing-houses, for tempering the cold water for use,during the winter season. 



///, &c. Cast-iron cisterns, to each of which is a supply-pipe mm, &c., 

 which is connected with a main pipe n communicating with thegrand tank 

 of rain-water o ; and also a hot-water pipe from the steam-boiler, for tem- 

 pering the water during the winter season. 



p]}. Gratings of the air-shafts in the front border, immediately within 

 the edging of the walks. 



q, The same gratings to the air-shafts which are placed within the house 

 at the bottom of the back wall. 



r. Open cast-iron work, serving instead of pavement for the footpath, 

 the whole on one level, s, Stone pavement, also all on the same level. 



t, Doors into the back sheds for shifting, potting, &c., without taking the 

 plants into the open air. 



u, Main trunk of the steam-pipe, which serves incidentally to heat all 

 the back sheds at pleasure, v, Box hedges, 2 ft. high, kept neatly clipped. 



w, Walk to pits. a\ Walk to melon-ground, y. Level front walk. 



z, Main kitchen-garden walk, forming the approach to the forcing-range 

 from the pleasure-ground, ^', Pumps with troughs. 



L L 2 



