MAG 



INDEX. 



MAL 



67 



Maclaurin, Colin, on equations with impossible roots, vii.145 

 • — description of curve lines, viii. 41, 43 



— solar eclipse, Edinburgh, and neighbourhood, viii. 169 



— of the meridional parts on a spheroid, viii. 514 



— forms of the cells of honey-combs, viii. 709 

 Macreuse, [anas nigra] nature of the, iii. 173,. . . . Robinson 



— remarks on, iii. 1 74, Ray 



Mad-animals, cure for the bite of, iv. 232, Dampier 



Madden, T. m. d., poisonous quality of laurel-water, vii. 468 



— dissec. of a person who swallowed crude mercury, viii. 80 



— a plum-stone lodged in the rectum, viii. 81 



Madder, effect of in tinging the bones, viii. 420, DuHamel 

 Madeira, meteorological observ. at, x. 232, 488, Heberden 



— increase of population at, xii. 475, Same 



— see Earthquakes. 



Madness, efficacy of camphor in maniacal disorders, vii. 206 



Kinnier 



— see Dog, Hydrophobia. 



Madrepora, account of the madrepora, x. 154, .... Donati 

 Magee, William, transit of Venus, 176*1, Bengal, xi. 645 

 Magellan, on the longitude of the straits, vi. 113, . . Halley 

 Magic lantern, to colour the figures of, iv. 317. Southwell 

 Magliabecchi, Anthony, biograph. account of, iv. 218, Note 



— particles of silver dissolved in aquafortis, v. 368 



Magnesia, chemical analysis of, xv. 244, Kirwan 



Magnet, of a large loadstone dug up in Devon., i. 149, Cotton 



— its attraction weakened by heat, i. 177, .... Colepresse 



— experiments with magnets, i. 166, Sellers 



— magnetical experiments, iv. l6l 



— on the magnetism of drills, iv. 332, Ballard 



— magnetical experts, and observs., v. 258, 259, Derham 



— of its power at different distances, v. 6()6,. . . . Hauksbee 



— experiments on the attraction of, vi. 168, Taylor 



— i on the power of, vi. 528, Same 



— on magnetic powers, vii. 105, Muschenbroek 



— experiments and observations with, vii. 400,. . . . Savery 

 ■ viii. 246, 247, Desaguliers 



— of magnets with more than two poles, viii. 246, Eames 



— magnetical experiments, ix. 71, 390, Knight 



— varied situations of the poles of, ix. 122 Same 



— magnetic properties of brass, xvi. 57, 170, .... Cavallo 

 copper and zinc, xvi. 59, . . Same 



1 brass and iron filings, xvii. 148, Bennet 



— see Needle, Compass. 



Magnet, (variation of) to find the variation at sea, i. 153 



— of magnetical variation* and experiments, i. 187, • • Petit 

 «— discoverers of a decrease in the variation, i. 189, • • Note 



— variation near Bristol, i. 264, Sturmy 



— table of predictions of variations, i 283, Bond 



— variations at Rome, i. 434, Auzout 



Dantzic, i. 5 !4 ; cause, 515, .... Hevelius 



— calculation of variations, ii. 78, Bond 



— remarks on the variation, ii. 488, Sturm 



— table of variations, and theory of, ii. 6*24, Halley 



— variation at Cape Cot so, iii. 32, Heathcott 



at Nuremberg, 1685, iii. 244, Eimart 



at Siam, 1685, iii. 346 



— experiments by u. s. respecting variation, iii. 384 



— cause of change in variation, iii. 470, Halley 



— difference in surveys made at long intervals, in conse- 



quence of magnetic variation, iv. 180, .... Molyneux 



— remarks on Halley's chart of variation, iv. 655, . . Wallis 



— table of, in the Atlantic and Ethidpic oceans, 17 06, v. 36l 



— on the remarks by the Paris Royal Academy, of his chart 



of magnetic variations, vi. 112, Halley 



— observations in the Baltic, vi. 498 Sanderson 



— in the Pacific ocean, table of, vi. 519, Halley 



— on a voyage, table of, vi. 569, Cornwall 



Magnet (variation of) variation of the horizontal needle, 



1723, vii. 27, Graham 



— in a voyage to Hudson's bay, vii. 136, -J-65, 617 ; viii. 591 



Middleton 



at Vera Cruz, 1726-7, vii. 224, Harris 



at Wittemberg, vii. 385, Weidler 



— in a voyage from Java to St. Helena, vii. 552,. . Halley 



— observations of, in the Atlantic, vii. 604, Harris 



— observations in voyages to Maryland, viii. 339, Hoxton 



— variations of the needle to the westward, ix. 499, Graham 



— remarks on the variation, x. 165, Wargentin 



— advantage of a periodical review of the variation, x. 556, 



Mountaine and Dodson 



— observations on magnetic variations, xi. 149, • • • • Same 



— tables of observations from 1700 to 1756, xi. 151, Same 



— on the regular diurnal variation of, xi. 421, ... . Canton 



— observations of variation at sea, 1760-1-2, xii. 336, Ross 

 — at Hudson's bay, xii. 684, Wales 



in Russia, xiii. 63, Mallet 



— tables of obser. in a voyage round the world, xiii. 178, Cook 



— instrum. for observs. used by the r. s. xiv. 54, Cavendish 



— diurnal vatiation at Sumatra, xviii. 29, . . . .Macdonald 



— cause of magnetic variation, ibid, Same 



— diurnal variation at St. Helena, xviii. 355, Same 



— see Needle. 



Magnet, (artificial) Mr.Seller's thediscoverer of, i. 167, Note 



— to communicate magnet, without a loadst., vii. 540, Marcel 



— magnetism communica. by lightning, viii. 24, 25, Cookson 



— a file rendered magnetical by lightning, viii. 463,Bremond 



— experiments with, ix. 393, Knight 



— method of making, x. 131, Canton 



— on giving magnetism to brass, xi. 285, Arderon 



— account of Knight's magnetic machine, xiv. 1 17, Fothergill 



— Knight's method of making, xiv. 480, Wilson 



— see Iron. 



Magnetic sand, experiments on, vii. 647, ..Muschenbroek 

 Magnitude, on comparing magnitudes, xiv. 183, .... Glenie 

 Mahon, Lord, see Stanhope, Earl. 



Mairan, M. biographical notice of, vii. 637, Note 



Maire, Christ., lunar eclipse, 1749> x. 4 



solar eclipse, 1750, ibid 



Maitland William, biographical notice of, vii. 6l0, . . Note 



— remarks on some bills of mortality, vii. 6l0 



— remarks on the population of London, viii. 257 

 Maize, description culture, and use of, ii. 465, . . . Winthrop 



— advantage of cultivating, iii. 588, Bulkley 



— note on the use of, ibid, Ray 



Malabar, of the productions of, i. 689, Baldaeus 



Maleverer, Mr., of coal borings, strata of earths, iv. 353 

 Malfalguerat, Mizael, a tumour on the thigh, viii. 410 

 Malholm Tarn, description of the lake, viii. 465, .... Fuller 

 Mallet, F., transit of Venus June 176l, at Upsal, xii. 289 



— parallaxes of altitude for the sphere, xii 344 

 Mallet, I. A., construction of water-wheels, xii. 446 



— transit of Venus 1769, at Ponoi, xiii. 6l 



— on the lengths of pendulums, xiii. 62 



— magnetic variations in Russia, xiii. 63 

 Malleus, see Ear. 



Mallow, increase of the seeds of, viii. 631, Hobson 



Malm, of the chalky concret. so called, viii. 729, Needham 

 Malpigbi, Marcellus, biographical account of, i. 1 71, Note 



— observations on the brain and tongue, i. 171 

 epiploon, i. 202 



— natural history and economy of the silkworm, i. 367 



— on the lungs of frogs, tortoises, &c, i. 589 



— a horny excrescence on the neck of an ox ; morbid 



appearances in the kidneys, iii. 49 



— description of the uterus of a cow, iii. 53 

 12 



