iii, 170

Aberdeen, remarkable storm at, iv, 313
Aberration of the fixed stars, disco-
very of, i, 33

Abyss, on the great, i, 252
Abyssinia, mountains in, ii, 429; on
the rains of, iv, 144; winds in, 189
Academy of sciences, institution of the,
i, 32

Acid, on the atmospheric carbonic,
iv, 19

Acidulous waters, analysis of, iii, 183
Aconite, experiments with the juice
of, v, 230, 236

Acroteri, account of the isle of, i, 497
Actinia, or sea anemone described, v,
363

his-

Adlersberg, remarkable cavern at, ii, 79
Adrian, remains of the villa of, iii, 68
Erial globes, how made, vi, 238
Erolites, remarkable shower of, iv,
459; general history of, 468; ana-
Jysis of, 470; origin of, 475
Erostation, principles of, vi, 63;
torical account of, 64
Es, on the antient, vi, 283
Affinity, nature of chemical, vi, 182
Africa, volcanoes of, i, 467; metals
and ores of, ii, 292; mountains of,
428; on the rivers of, iii, 13; deserts
of, ii,483; on the climate of, iv, 82
Agaric, the cause of fairy-rings, v, 318
Agates found in Scotland, ii, 326; note.
Agnano, account of the lake of, iii, 242
Agricola, George, character of, vi, 9
Air, on the properties of the, iv, 4;
instruments for measuring the, 8;
remarkable lights in the, 400, 416
Aix, account of the baths of, iii, 169
Aix-la-chapelle, mineral springs at, iii,

166

Akkabaahs, caravans so named, ii, 484
Alberti, affecting story of, ii, 333
Alchemy, antiquity of, vi, 5
Alcohol, experiments on, v, 226
Alexandria, account of the school of,
i, 9; the stadium of, 11
Alleghany mountains described, ii, 431
Allier, St. remarkable bridge of, iii, 169
Alligator, description of the, v, 550

VOL. VI.

Almicanters, definition of, i, 307
Almonds, on the essential oil of bitter,
v, 229, 236

Aloes tree described, v, 191
Alphabets, invention of, vi, 351
Alphonso of Castile, account of, i, 19
Alpine plants, account of, v, 34
Alps, general description of the, ii, 410
waterfalls in the, iii, 219; red snow
on the, iv, 173; passage of Hannibal
over the, vi, 173

Alum collected in Solfatara, i, 526
| Amazons, description of the river of,
iii, 45

Ambergris on the coast of Ireland, ii,

177

America, volcanoes of, i, 479; metals
and mines of, ii, 292; mineralogy of
north, 313; mountains of, 431;
rivers in north, iii, 38; in south, 44
Amianthus, description of the, ii, 392
Ammoniac, on caustic, iii, 190
Ammoniacum, properties of the gum,

v, 208

Ammonian fountain, its existence prov-
ed, iii, 140

Amphibials, particulars of, v, 542
Amphiscii, what, i, 313

Amphitheatre of Vespasian, account of,
iii, 67

Amsterdam, description of the isle of,
iv, 102

Analysis, observations on mathemati
cal, i, 176

Anaxagoras, system of, i, 7
Anaximander, maps constructed by, i,
298
Andes, remarkable caves in the, ii, 81;
description of, 434; temperature of
the, iv, 61; rain in, 149
Anglesey copper-miues, account of the,
ii, 318

Angustura bark, account of, v, 158
Animalcules described, v, 345
Animals, characteristics of, v, 1; classi-
fication of, v, 325

Anio, scenery on the river, iii, 67
Ant, natural history of the, v, 449; ac-
count of the white, ib. 471
Antartic circle, voyages to, iv, 89

Anthony, of the falls of St. iii, 225
Antioch destroyed by earthquakes, ii, 2
Antiparos, remarkable grotto of, ii, 77
Antipodes defined, i, 314
Antiquities found in Lincolnshire, ii,
217; Yorkshire, 227; Herculaneum,
229; Pompeii, 248; Industria, 259;
Leadenhall-street, 266
Antisana, volcano of, i, 490
Antaci, definition of the, i, 314
Antrim, curiosities of, i, 271
Apes' hills in Africa described, ii, 428
Appallachian mountains described, ii,

431

Appennines, description of, ii, 418; lu-
minous appearance of the snow in,
iv, 501

Aquatic plants, v, 23

Arabia, deserts of, ii, 483; heat in, iv,
78; rains seldom in, 156
Arabians, astronomy of, i, 19; know-
ledge of chemistry by the, vi, 6
Ararat, situation of mount, ii, 424
Arches, luminous, iv, 421; iridiscent,
ib. 526

Archimedes, account of, vi, 458, 465
Architecture, on the science of, vi, 465;

on naval, ib. 519

Arctic circle, climates within, iv, 111
Areca nut, account of, v, 60
Aristarchus, account of, i, 16
Aristotle, physics of, i, 216; on mea-
suring the earth, 299

Ark of Noah described, vi, 513
Arrows, poisoned ones of the Indians,
v, 267

Arts, on the imitative, vi, 408

Arvo in Savoy, scenery of the, iii, 220
Arzila in Barbary, earthquake at, ii, 41
Asbestos, account of the, ii, 391
Ascii, definition of the, i, 313
Ashes, account of a shower of, iv, 161
Ashly, Northamptonshire, storm at, iv,

252

Asia, population of, i, 316; volcanoes,
464; mines of precious stones, ii,
287; mountains, 423; rivers, iii, 10
Asphaltites, description of the lake, iii,

253

Asphaltum, specific gravity of, iii, 151;
experiments on, ih. 254
Aspic of Cleopatra, on the, v, 580

Assa-fætida plant described, v, 212
Astertas, or star-fish, description of, v,
364

Astrology, origin of, i, 4
Astronomical symbols explained, i, 35
Astronomy of the antients, i, 1; mo-
dern Europe, 19; general notices
on, 34; elements of, 144, general
remarks on, 189; future progress of,
206

Atheism, observations on, i, 215
Athens, sculpture and architecture of,
vi, 540

Athos, description of mount, ii, 403
Atlantic ocean, observations on, iii, 52%
Atlas mountains described, ii, 428
Atmosphere, observations on the solar,
i, 51; of the earth described, ib.
455; general nature of, iv, 2; vari-
ation, 24; elasticity, 25; tempera-
ture, 31; currents in, 197; form of
the electric, 271: shower of stones
from, 459; refractions in, 516
Atmospheric air, observations on, iv, 4;
water, ib. 14; carbonic acid, 19;
unknown bodies, 21; electricity,
297; deceptions, 504; refraction,
singular instance of, 514

Atomical system of physics, i, 216
Atropa bella donna, properties of, v,

250

Attraction, on the principle of, i, 221;
of electricity, vi, 18; nature of che-
mical, ib. 132

Avalanches, accounts of, iv. 175
Avernus, description of the lake, iii, 61
Aurora borealis, as seen in Hudson's

bay, iv, 117; general history of the,
ib. 393

Australasia, on the name, i, 316
Autun, a remarkable wind so called,
iv, 234

Azores, volcanic phenomena in the, i,
497; island thrown up there, ib. 502
Azotane, account of, vi, 207
Azotic gas, what, iv, 6
Bacon, Roger, character of, vi, 7; his
discoveries, ib. 170

Baden, description of the baths of, iii,
163

Baiae, scenery and antiquities of, iii,57
Baikal lake in Siberia, iii, 231

51

Barbadoes, remarkable caves in, ii, 81
Barbary, earthquakes in, ii, 40
Bardella, site of the antient, iii, 73
Bark, different kinds, v, 146
Barometer, principles of, iv. 25; de-
scent of, 143

Barrows, account of, vi, 506
Basaltes of Vesuvius, i, 354
Basaltic hummocks described, i, 293;

columus, general account of, ii, 471
Batavia, unhealthiness of, v, 84
Bath, description of the city, iii, 171
Baths, inchanted ones of Africa, iii, 162
Beccher, his character, vi, 11
Bee, natural history of, v, 421
Beech, letters found in one, v, 314
Beet root, mode of extracting sugar
from, v, 86

Bejucos, peculiar bridges in South
America, ii, 436

Belemnites, description of, ii, 151
Bell metal, composition of, vi, 286
Bengore, description of the promonto-
ry of, i, 273

Beni Abbess, in Algiers, described, ii,

104

Bolognian stone, properties of, ii, 385;
phial, nature of, vi, 167
Bolsena, cape, described, iii, 241
Bombs, construction of, vi, 238
Bones, account of remarkable, ii, 152;
enormous ones in Siberia, 178; fos-
sil, 182; general history of, 189; is-
lands formed of, 195

Bononia, remarkable light seen at, iv,
418

Borrowdale in Cumberland, described,
iii, 261

Borysthenes, present state of the, iii, 21
Boston in America, earthquake at, ii, 44
Botany, particular divisions of, v, 1;
systems of, 6

Bothnia, temperature of the gulph of,
iv, 33

Bourbon, volcanoes in the isle of, i,

477; river in America, iii, 39
Bourget in Savoy, lake of, iii, 236
Bovey coal, origin and properties of,
ii, 339

Boyle, anecdote of, vi, 8; character, ib.

10; discovers phosphorus, ib. 113
Brachmans, visited by Pythagoras, i, 7
Bradley, Dr. discoveries of, i, 33, 43
Bramins, astronomy of the, i, 34
Brass, preparation of, vi, 260; of the
antients, on the, ib. 272
Braybrook, Northamptonshire, storm
at, iv, 253

Brazil, mineral productions of, ii, 299,
302