ABOUT.

A.

About the same time,' 346, 354. ACADÉMIE des Sciences, l',' papers of Lavoisier, Meusnier, and Monge in. (See WATER, COMPOSITION OF.)

'ACID of sea-salt,' 'dephlogisticated,' 399. ACTA Eruditorum Lipsiæ,' 133, 138, 139; translation of Papin's Memoir in, 140-146. ADAMS, George, advertisement of perspective instrument, 56; apparent piracy of Mr. Watt's invention, ib.

ADMIRALTY College, of Russia, 408. ADVOCATES of Cavendish, their assertions, 357, 370; shown to be groundless, 357370, 371-374.

EOLIPILES, 107-109.

AGALMOTOPOLA, 470.

AGATHIAS, History of Justinian, 109.
AIR, empyreal, 392.

AIR-PUMP, by steam, Robison's, 69; Wilcke's,

100, 101; of improved engine, 79, 88, 169, 184, 188, 189, 192, 409.

'AIRS,' 'Factitious,' 429, note. ALABASTER, artificial, 469. ALADDIN, 'new lamps for old,' 462.

ALBANY, 440; distance from New York, ib.,

BANKS.

ARABIAN, 281. ARAGO, M., commentary on Mrs. Campbell's anecdote, 21; brief extract from Robison's narrative, 58; panegyric on De Caus, 111; on Papin, 132; his copy of Papin's Re'cueil,' 137; criticism on Savery, 153; account of Soho, and of Mr. Boulton, 173; on invention of micrometer with moveable object-glass, 233, and note; on Mr. Watt's grief at the loss of his first wife, 241; his character of second Mrs. Watt, 260; on discovery of composition of water, 345, &c.

ARGAND, Mr., Mr. Watt's letter to, on lamps, 462.

ARISTOTLE, small bust of, 469.

ARITHMETICAL machine, contemplated by
Mr. Watt, 466, 467.

ARMADA, Spanish, bullets of, 506, 507.
ARNAL, the Abbé, 437.

ARN'S Well, in Green of Glasgow, 82. ARTICULATED water-pipe for Glasgow Water-works, 468.

ARTIFICIAL alabaster, 469.

ARTS, Society of, in 1778, 231.

ART-UNION (of London), medal in honour of Chantrey, and of the monument to Watt, 536.

ASH, Dr., 252.

ASHTON and Furnau, Messrs., 438.
ATLANTIC Ocean, the, 31.

ATMOSPHERIC gas, 392.

AUZOUT and Picard, their cross-hair micrometer, 235.

AXES, primary, 293. AYR, harbour of, 213. AYRSHIRE, 424.

AMONTONS, M., his fire-wheel,' 159.
AMPHITRYONS,' Manuel des,' 388.

ANDERSEN, Hans Christian, on Marion de l'Orme's letter, 127.

ANDERSON, Professor John, 65, 92, 93; Mr. Watt's gift to him of prismatic micrometer, 232.

ANDERSONIAN Institution in Glasgow, the, 92. 'A new hare,' 295, 485.

ANGLO-SAXON, Mr. Watt's study of, 490.
ANTHEMIUS, his use of steam, 109.
'ANTHROPOPHAGI,'' of London,' 415.

B.

BABBAGE, Mr., 467, note.
BACCHUS, 386.

BACON, Lord, on the honour paid to inventors, 2, 312.

BAILLY, 388.

BAKER and Co., of Manchester, 400.
BALLAD of the Laird of Muirhead,' 14.
BANKS, Sir Joseph, President of Royal So-
ciety, 333, 337, 342, 386, 489.