QUI 



INDEX. 



RAT 



*r 



Purging medicines, on the principles of, iv. 6*52, .... Bolduc 



— adapted to ages and constitutions, v. 250, 399, Cockburn 

 Purple fish, on the buccinum lapillus, iii. 252, Cole 



— of a species of aplysia, xi. 225, Peyssonel 



Putrefaction, preservation from, of a body in a copper-mine, 



vii.41, Leyel 



— experts, on substances resisting, x. 57, 73, • . • • Pringle 

 -— further experts., and on promoting it, x. 84, Same 



— lime-water a preservative from, x. 358, Hume 



— experts, on the nature and causes of, xiii. l63,. . . . Crell 

 Pye, Wm., account of the island Manilla, x. 6'73 



Pyke, Isaac, method of making mortar at Madras, vii. 515 

 Pylarini, Jas., M. d., biograph. account of, vi. 207, . . Note 



— practice of inoculation in Turkey, ibid 



Pyrites, the cause of earthquakes and lightning, iii l6,Lister 



Pyrmont, a sulphureous cavern at, viii. 204, Seip 



Pyrmont waters, nature and virtues of, vi. 2S0, .... Slare 



— difference of, and the Spa, vi. 281, Note 



— stones voided by drinking, vi. 6o6", Vater 



Pyrometer, with table of expansion, x. 482, Smeaton 



— see Expansion. 



Pyrometry, essay on, xiv. 387, De Luc 



Pyrorganon, see Electricity. 



Q 



Quab, description of the fish so called, ix. 470, Baker 



Quadrant, for altitudes without a horrizon, vii. 531, Elton 



— on Godfrey's improvement of Davis's, vii. 6*69, . . Logan 



— a new mural, ix. 347, Gersten 



— usefulness of Hadley's for pilotage, xii. 1.97, . . Mitchell 



— additions to Hadley's, more useful at sea, xiii. 291 



— method of using Hadley's quadrant, xiii. 292, Maskelyne 



— a new division of the, xv. 464 



Quadratrix, construction of, to the circle, iv. 462 . . Hutton 



— to the hyperbola, v. 302, Perks 



Quadrature, of figures geometrically irrational, iv. 202, Craig 



— of the logarithmic curve, iv. 318, Same 



— of the lunula, iv. 452, Wallis, &c. 



— of some sorts of curves, iv. 658, Demoivre 



— of figures, method of determining, v. 24, Craig 



— of a curve of the third order, vi. 183, Demoivre 



— see Curves. 



Quadrature of the circle, see Circle. 



Quadrupeds, see Antelope, Armadillo,, Bear, Camel, Camelo- 

 pardalis, Caracal, Chamois, Civet-cat, Coati-tnundi, Cow, 

 Deer, Dog, Dromedary, Elephant, Elk, Ermine, Fox, 

 Gazelle, Hare, Hedgehog, Hind (Sardinian,) Home, 

 Jackal, Kanguroo, Lyon, Lynx, Marten, Mice, Monkey, 

 Moose-deer, Musk-hog, Nyl-ghaw, Opossum, Orang 

 Outang, Ornithorhyncus, Otter, Porcupine, Rabbit, Rat, 

 Rhinoceros, Shrew, Spiirrel, Stag, Sus QZthiopicus, 

 Tyger-cat, IVeesel. 



Quantity, the sev. species of infinite quantity, iii. 465, Halley 



— essay on, ix. 559, Reid 



— finding the values of algebraic quant, xvi. 191, Waring 



— elements of exponential quant. &c. xvii. 703, L'Huillier 

 Quarantine, as performed in England, remarks on, x. 239, 



Mackenzie 

 Quarries, remark, stone quarry at Maestricht, i. 552 ; v. 51 



— see Marble. 



Quassia root, efficacy of, in fevers, xii. 515, Monro 



■ xii. 5l6, Farley 



Quereus coccifera, account of, i 134, Note 



Quec, A. do, method of rowing men of war in a calm, vi.5-15 



Quicksilver, see Mercury (mineral) 



Quinarius, sec Coins. 



Quincy, John, m. d., on the operation of medicines, vi.479 



Quintiny, John de la, cultivation of melons, i. 327, 335 



R 



Rabbit, specific characters which distinguish it from the 



hare, xvi. 267, Barrington 



Radicals, reduction of, to simpler terms, viii. 271, Demoivre 



Rain, diminished in the West Indies by clearing away the 



trees, i. 175 ; remarks on the rains in the W.Indies, ibid 



— quantity falling sufficient to supply rivers, ii. 542, Papin 



— contrivance for measuring the quantity of, ibid,. . . . Note 



— method of estimating the fall of, iii. 619, .... Townley 



— of a storm of salt rain, v. 91. Fuller 



— of the same storm, & the weather preceding, v. 92,Derham 



— of the same salt storm, v. 93, Leuwenhoek 



— a violent storm of, at Denbigh, v. 331 



— effects of a violent shower in Yorkshire, vi. 585, Thoresby 



— instrument for measuring the depth of, vi. 658, Horsley 



— difference of the fall at different heights, xii. 659, 



Heberden ; xiii. 419, Note 



— a remarkable kind which fell at iEtna, xv. 165, Gioeni 



— see Meteorological Observations, [Feather, Storms. 

 Rainbow, of two crossing each other, seen at Chartres, i. 73 



— optical observations on the, ii. 222, Linus 



— an extraordinary, seen at Chester, iv. 277, .... Halley 



— on the diameter and colours of, iv. 527, Same 



— description of a lunar iris, v. 642, Thoresby 



— observations of an inverted, vi. 532, Whiston 



— seen on the ground, vi. 541, Langwith 



— account of a secondary or reflected, vi. 623, .... Same 



■ vi. 624, Pemberton 



— and vapours accounted for, vii. 323, Desaguliers 



— an unusual one, seen July, 1748, ix. 682, Daval 



— an inverted rainbow on the grass, x. 200, Webb 



— of a solar iris seen after sun-set, xi. 137, .... Edwards 



— account of several lunar rainbows, xv. 353, . . Tunstall 



— account of 2 primary rainbows, xvii. 282, Sturges 



Rain-gage, or ombrometer description of, ix. 36, Pickering 



— plan of his cistern for rain, xiii. 131 Barker 



— description of that used by the r. s. xiv. 52, Cavendish 

 Ramazzini, Bernardin, biograph. account of, iv. 213, Note 



— distemper among the cattle in Italy, vi. 78 



Ramsden, John, descrip. of two new micrometers, xiv. 557 



— new eye-glasses for telescopes, xv. 350 

 Rana piscatrix, see Frog-Jish. 



Ranby, John, biographical notice of, vii. 12, Note 



— dissection of an eye with cataract, vii. 12 



— dissection of an ostrich, vii. 69 



— of a duct from the glandula renalis, vii. 84, 163 



— dissection of part of a rattlesnake, vii. 217 



— observations in dissecting several human bodies, vii. 226 



an ostrich, vii. 392 



— of a large umbilical rupture, vii. 513 

 Raper, Matthew, on the measure of the Roman foot, xi. 485 



— on Norwood's measure, of a deg. on the meridian, xi.593 



— observation of a solar and lunar eclipse, 1764, xii. 116 



— value of ancient Greek and Roman money, xiii. 193 

 Raspe, R. E., on the fossil bonesof large quadrupeds, xii, 6l2 



— opinion of the origin of white marble, xiii. 10 

 — ■ of some Basalt hills in Hessia, xiii. 222 



Rastell, T., m.d., Droitwich salt springs & manufac, ii. 463 

 Rastrick, W., observ. of aurorae boreales for 4 years, vii. 185 

 Rat, microsc. observ, on the testicles of, iii. 481, Leuwenhoek 



— dissection of a, iii. 482 



Rathbone-place water, analyt. exper. on, xii. 393, Cavendish 

 Rattle-snakes, killed by wild penny-royal, i. 16, ... . Taylor 



— polygala senega, an antidote for the poison of,i. 16, Note 



— dissection of a, ii. :j61, Tyson 



— description of, vi. 642, : Dudley 



— experiments on the poison of vii. 196 Hall 



