56 



IMP 



INDEX. 



I NO 



Hygrometer, an improved hygroscope, ix. 214, ... . Arderon 



— an improvement in the weather-cord, ix. 234, .... Same 



— made with a deal rod, ix. 242, Same 



— description of a. new one, xii. 151, Ferguson 



xiii. 127. • • — Smeaton 



— ■ - xiii. 469, De Luc 



■ that used by the r. s., xiv. 53, . . Cavendish 



— experiments with his hygrometer, xvii. 1, 111, . . De Luc 



Hygrometry, on the laws of, xvii. 260, De Luc 



Hyoscyamus albus, see Henbane 



Hyperbola, on the squaring of the, i. 233, Lord Brouncker 



— construction of a quadratrix to the, v. 302, Perks 



— theorem of the arc of, xiii. 647, Lander 



— see Geometry, Curves, Logarithms, &c. 



Hypnum terrestre, description of and seeding, ix. 200, Hill 

 Hypocaust, a Roman sudatory in Shropshire, v. 29^, Lister 



— remarks on the hypocaust in Shropshire, v. 291, Harwood 



— of the hypocausts of the ancients, ibid, Baxter 



— description of a Roman, in Lincolnshire, viii. 532,Sympson 

 Hysteric and hypocondriac passions, opinions of Willis and 



Highmore, i. 411 



Ice, to preserve ice and snow with chaff, i. 50, Ball 



— made without air, diff. from com. ice, i. 599, Rinaldini 



— on the instantaneous freezing of water, vii. 223,Triewald 



— new experiments on ice, viii. 223, Nollet 



— motion and dissolution of the masses of ice in Hudson's 



Bay, xiii. 23, 31, Wales 



Ice (artificial,) method of producing ice, i. 89, Boyle 



— experiments of artificial conglaciation, i. 541 



— — on the freezing of salt waters, iii. 107, Lister 



— — — on freezing, iv. 322, 340, Desmasters 



■ of freezing various waters, v. 481, Hauksbee 



. tinctured waters, v. 483, . . Same 



in vacuo, vii. 22, . . . Fahrenheit 



— experiments on sudden freezing, ix. 93, Holman 



■ - the freezing of boiled water, xiii. 6l 1, Black 



— process of making ice in the E. Indies, xiii. 643, Barker 



— experiments on the freezing of sea water, xiv. 35, Nairne 



— M'Nab's experiments, at Hudson's Bay, with freezing 



mixtures, xvi. 97, 425, Cavendish 



— experts, on the freezing of vitriolic acid, xvi. 271, Keir 

 —of making ice at Benares, xvii. 294, 305,. . . . Williams 



— see Cold (chemistry,) Congelation. 



Iceland, account of, ii. 187, Biornon 



Ichneumon worms, account of, i. 644, . . Willoughby 



— of the t£»ft//*»i', i. 645, Lister 



Icy mountains, of Switzerland, account of, i. 365, Muraltus 



— of the same, v. 481, Burnet 



Idiot, who swallowed iron, at Ostend, v. 433, Amyand 



Ignis fatuus, how caused, vii. 374, Derham 



Ignition, increased weight of bodies by, xiv. 96, . . Roebuck 



— experts, on weight of ignited bodies, xiv. 1 12,Whitehurst 

 Iliac passion, cure of the, iv. 498, Chirac 



— case of, ix. 124, Amyand 



— from palsied intestines, x. 164, De Castro 



Ilium, a rupture of the, viii. 138, Wolfe 



— cure of, cut through by a knife, x. 73, Huxham 



Imagination, force of, enabling old women to give suck, ii. 141 



— child born with a wound in the breast, iv. 102, Cyprian 



-i— extraordinary effect of, iii. 37-5, Ash 



Imitation, of an imitative man, ii. 382, Garden 



Immersion, into hot and cold, fresh and salt, water, effect 



of, on the powers of the body, xvii. 193, Currie 



Impact, see Motion, (Force of Moving Bodies.) 

 Imposthume, in the stomach, case of, vi. 579, ..Atkinson 



■ liver, vii. 500, Short 



Imposthume, in the gall-bladder, viii. 228, Amyand ; obser- 

 vations on the same case, viii. 232, Stuart 



— in the stomach of a girl, x. 29, '..'.' Layard 



Impregnation, modern doctrine of, i. 697 ; ii. 581, . . Notes 



— continued impregnation of the aphides, iv. 515,'.'. Note 



— animal impregnation, xviii. 112, Haighton 



— observations of the changes in the ova for 4 days after 



impregnation, xviii. 129, Cruikshank 



— see Generation. 



Incalescence, of quicksilver with gold, ii. 267 



Incarville, Father, D', observations in natural history, &c. 



made in China, x. 387 



Increments, on the method of, vi. 189, Taylor 



Incrustation, a remarkable sparry incrusta., xiii. 439, King 



Incus, see Ear. 



Indians, of North America, of the languages, manners, <fcc. 



of, xiii. 406, Johnson 



— of their nature, and customs, xvi 93, ... . M'Causland 

 Indies (East) attempts to find a north-west passage, ii, 171 



— curious tricks of jugglers at, ii. 355, Tavernier 



— of diamond mines, ii. 405 



— observations at, in answer to queries, iv. 299 



— of the arts and medicine of, vi. 50, Papin 



— discoveries of the ancients in, xii. 408, Caverhill 



— see North East Passage. 

 Indians, see America. 



Indian cock, anatomy of the, iii. 392 



Indian corn, see Maize. 



Indian numerals, see Arabian Figures. 



Indian Shawls, how manufactured, xiv. 195, Stewart 



Indigo plant, its effect in colouring the juices of a living 



animal, xi. 137, Baker 



Industria (city) situation discovered from an inscription, 



ix - 174, Baker 



Infection, method of self-preservation from, ii. 148, Note, 



Diemerbroeck 



— universal preservative against, ii. 492, .... Dobrzensky 



— manner of receiving, and means of avoiding, ii.493, Note 



— see Plague. 



Infinites, on the several species of, iii. 465, Halley 



— see Series, Equations, Roots, Sj-c. 



Infirmities (natural) of an imitative man, ii. 382, . . Garden 

 Inflammation, on the light produced by, xiv. 93, . . Fordvce 



— occasioned by linseed ®il without fire, xvii. 449, Humfries 

 Inguinal rupture, see Rupture. 



Injection, method of conveying liquors into the blood, i. 45 



— into the veins of animals, i. 170, Fracassati 



— confirmation of Fracassati's experiments, i. 201,. . Boyle 



— into the human veins, i.205, Fabritiusj venereal exostosis 



cured thereby, ibid j Epileptic fits cured, ibid 



— of liquors into the blood, inutility and danger of, 248, 



Clarck 



— success of some experts, by Dr. Smith at Dantzick, i. 275 



— see Tapping. 



Ingenhousz, John, m. d., biogra. account of, xiii. 575, Note 



— experiments on torpedos, xiii. 575 



— experiments on mixing common and nitrous air, xiv. 38 

 platina, xiv. 40 



— to light a candle by the electric spark, xiv. 462 



— experiments with the electrophorus, xiv. 46*3 



— a new kind of inflammable gas, xiv. 540 



— new theory of gunpowder, xiv. 546 



— new suspensions of magnetic needles, xiv. 589 



— improvements in electricity, xiv. 598 



— degree of salubrity of sei-.nr, xiv. 691 



— effect of vegetables on animal life, xv. 319 



Ink, on the composition of ancient inks, xvi. 351, Blagden 

 U Inoculation, at Constantinople., vi, 88, vii. 646, . . Timoni 



