7G6 



INDEX. 



to them, 131 — proper proportions of them, &c, 

 132 — trellises for them, 134 — the proper angle 

 of elevation for them, ib. — on covering their 

 roofs with a view to economise heat, 551. See 

 also Vineries, Pineries, Peach-houses, Conser- 

 vatories, Greenhouses, &c. 



Hothouses, furnaces for, see Furnaces. 



Hothouses, heating of, preliminary remarks on 

 it, 140 — by flues, 145 — by hot-water pipes, 



153 — by hot- water tanks or gutters, 192 — by 

 hot-air stoves, 213 — by steam, 228 — boilers 

 and pipes for it, 231 — furnaces for it, 251. 



Hothouses, ventilation of, see Ventilation. 



Hot water, general remarks on heating by, 185 

 et seq. — comparison between it and steam, 191 

 — cause of the circulation of it, 263 — Tred- 

 gold's theory of its circulation, ib. — Hood on 

 it, 264 — effects of friction on it, ib. — on circu- 

 lation above the level of the boiler, 266 — and 

 below it, 267 — Ainger on it, 268 — Bernan on 

 it, 269— Tomlinson on it, 270. 



Hot- water pipes, heating by, 153 — claims to the 

 invention, &c. of it, ib. — Atkinson's system, 



154 — Bacon's system, 155 — Kewley's, ib.- — 

 construction, &c. of joints, 156 — Fowler's 

 system, ib. — Weeks', ib. — Perkins', 157 — 

 Eckstein and Bushby's, 160 — Bonnemain's, 

 161 — Watson's, ib. — Cruickshanks', 162 — 

 Eogers', 165 — Rettie's, 166 — Sampson's, 

 167 — Cottam and Hallen's, ib. — Burbidge 

 and Healey's, 168 — Garton and Jarvis', 

 169 — Stephenson's double cylindrical, ib. 

 — Stephenson's conical, ib. — Wood's, ib. — 

 Barchard's, 1 7 1 — Walker's, ib. — Penn's, 173 — 

 Coldridge's, 175 — Smith's, ib. — Neeve's, 176 — 

 Waldron's, 177 — Scotch distillers' boiler, ib. — 

 Bailey's boiler, ib. — Cottam and Hallen's 

 boiler, ib. — Atkinson's boiler, 178 — Thomson's 

 boiler, ib. — Burbidge and Healey's new boiler, 

 ib. — Dalkeith wrought-iron boiler, ib. — 

 Fowler's boiler, 179 — Bailey's new boiler, ib. 

 — Williams' boiler, 180 — Weeks' improved 

 boiler, ib. — Kerslake's boiler, 181 — the Captain 

 boiler, ib. — general remarks on the subject, 

 184 — radiators for, 189 — comparison between 

 this method and steam, 191 — Henderson's 

 method, 192 — effects of various sizes of pipes 

 on the circulation, 264 — prices, &c. of, in dif- 

 ferent localities, 744. 



Howie, Mr, fountains at Nuthill executed by, 



619, 635. 

 Howison, Dr, the hive of, 526. 

 Huish's hives, 524. 



Humidity, means of increasing, in hothouses, 

 243, 248. 



Hunt, R., on the colour of glass best suited to 



hothouses, 535. 

 Hurwood's mode of ventilation, 280. 

 Huyshe's system of tank-heating, 200. 

 Hydraulic ram, description of the, 18. 



Ice, history of the economic employment of, 

 497 — the best kinds of it, 498 — the prepara- 

 tion of it in the United States, ib. — the defec- 

 tive mode of preparing it in Great Britain, 

 499 — the production of it by artificial means, 

 512 — list of various mixtures for this, 513. 



Ice-houses, on the construction of, 497 — ex- 

 ample of one, 500 — another, 501 — an orna- 



mental one, 502— the stack system, ib. — the 

 proper situations for them, 503— Mr Corbett 

 on them, ib. — mode of constructing them in 

 China, 504 — probable changes which will en- 

 sue in the mode of constructing them here, 

 505 — Cobbett on them, and his plan of con- 

 structing them, ib. — one from the Gardeners' 

 Chronicle, 506 — another, 507 — that at the 

 Hirsel, 509 — that at Erskine house, 510. 



Icolmkill, supposed traces of garden at, 7. 



Inclined walls, on, with examples of them, 94. 



Incrustation in boilers, prevention of, 237. 



India-rubber, glazing with, 541. 



Ingestrie hall, Remmington's bridge at, 682. 



Inveresk, prevalent winds at, 36. 



Ireland, origin, &c. of gardening in, 8 — a kitchen 

 garden in, 45. 



Iron, employment of, for coping walls, 72 — pro- 

 cesses for preventing the corrosion of, 128 — 

 experiments on the strength of it, ib. et seq. — 

 employment of it in the construction of tanks 

 and cisterns, 521 — for sashes, 545 — for rafters 

 and astragals, ib. — for edgings in gardens, 590 

 — in the construction of fountains, 632 — cast- 

 ing of vases in it, 642 — employment of it for 

 statues in the flower-garden, 648 — prices, &c. 

 of it in different localities, 744. 



Iron bridges, various kinds of, 679 et seq. 



Iron espaliers, construction of, 556, 557. 



Iron flues, construction of, 147. 



Iron garden seats, specimens of, 650, 651, 690. 



Iron grating, employment of, for footpaths, 561. 



Ironwork, specifications as to expense of, in 

 different localities, 743. 



Irregular flower-garden, the, 578. 



Irrigation, importance of, in gardens, 15. 



Italian arbour, example of a, 653. 



Italian style in flowei--gardening, the, 573. 



Italy, revival of gardening in, 3. 



James' translation of Le Blond's work on gar- 

 dening, 609. 



Jeffrey's marine glue, use of, in glazing, 541, 

 542. 



Johns & Co., their process for coating iron, 128. 

 Joiner-work, specifications as to expense of, in 



different localities, 742. 

 Joints, the construction of, for hot- water pipes, 



the composition for closing them, &c, 156 — 



various kinds of them, 246. 

 Jucke's smoke-consuming furnace, 257. 

 Justice, Mr, method for the preservation of 



fruit after gathering employed by, 493. 



Karnes, lord, improvements in gardening intro- 

 duced by, 8. 



Kashmir hive, the, 526. 



Kemp, Mr, on rockwork, 703. 



Kendall's hot-air stove, description of, 225 — 

 double pit, 435. 



Kensington gardens, the arboretum in, 585. 



Kent, Mr, cultivation of aquatics by, 414. 



Kent's mode of glazing, 543. 



Ker, B., Esq., form of espalier used by, 558. 



Kerslake's universal flue-boiler, 181. 



Kew, the palm-stove at, 119, and Plate xiv. — 

 the architectural conservatory at, 367 — green- 

 house at, 389 — the orangery at, 400 — the 

 orchid-house at, 408— form of rafter used at, 



