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INDEX. 
ABERCROMBY (LORD), biographical account of. 
H. App. iv. 1. 
ABERDEEN, on the latitude and longitude of. P. C. 
iv. 135. 
ADIE (ALEXANDER J.), on the expansion of 
stone from an increase of temperature, with a de- 
scription of the pyrometer used in making the ex- 
periments. xiii. 354. 
AIR, abstract of experiments made to determine the 
true resistance of the air to the surfaces of bodies 
of various figures. P. C. ii. 29, 
ALCOHOL, on the action of voltaic electricity on. 
xiii. 315. 
ALGEBRAIC EQUATIONS, on the use of negative 
quantities in the solution of problems by. P. C. 
i. 131. 
ALISON, LL.B. (REV. ARCHIBALD), memoir of 
the life and writings of the Hon. Alexander Fraser 
Tytler, Lord Woodhouselee. viii. 515. 
ALISON, M.D. (PROFESSOR WILLIAM P.), on 
single and correct vision, by means of double and 
inverted images on the retine. xiii. 472. 
ALLAN (ROBERT), abstract of a paper accom- 
panying a suite of volcanic rocks from the Lipari 
Islands, presented to the Royal Society. xii. 531. 
ALLAN (THOMAS), remarks on a mineral from 
Greenland, supposed to be crystallized gadolinite. 
vi. 345. 
——— on the rocks in the vicinity of Edinburgh. 
vi. 405. 
on the transition rocks of Werner. vii. 109. 
———— an account of the mineralogy of the Faroe 
Islands. vii. 229. 
——— sketch of the geology of the environs of Nice. 
viii. 427. 
description of a vegetable impression found in 
the quarry of Craigleith. ix. 285. 
observations on the formation of chalk strata, 
and on the structure of the belemnite. ix. 393. 
on amass of native iron from the desert of 
Atacama, in Peru. xi. 223. 
ALLANITE, experiments on, a new mineral from 
Greenland. vi. 371. 
AMETHYST, remarks on the distribution of the co- 
louring matter in the. ix. 139. 
ANCRAM (EARL OF), description of some improve- 
ments in the arms and accoutrements of light ca- 
valry, &e.  v. 247. 
ANDERSON (DR JAMES), on some economical uses 
to which cast iron may be applied. H. i. 26. 
ANDERSON (THOMAS), pathological observations 
on the brain. P, C. ii, 17. 
ANTIMONY, account of experiments on. H. i. 16. 
APOPHYLLITE, account of a remarkable structure 
in, with observations on the optical peculiarities of 
that mineral. x. 317. 
AQUEOUS SOLUTIONS, on the action of voltaic 
electricity on. xiii, 315. 
ARCHITECTURE, on the origin and principles of 
Gothic. P. C. iv. 3. 
ARTHUR’S SEAT, of certain natural appearances of 
the ground on the hill of. P. C. ii. 3. 
ARTS. Remarks on the progress of the arts among 
the ancient inhabitants of Scotland. L. C. ii, 3. 
ASBESTUS, observations on. xi. 352. 
ASTA, on the ancient geography of central and east- 
erm. viii. 171. 
ASTRONOMY of the Brahmins, remarks on the. P.C. 
ii. 185. 
ATMOSPHERIC REFLECTIONS and REFRAC- 
TIONS, description of some remarkable, observed 
in the Greenland sea. ix. 299. 
AURORA BOREALIS observed in daylight. H. v. 7. 
BABBAGE (CHARLES), an examination of some 
questions connected with games of chance. ix. 153. 
on the application of analysis to the discovery 
of local theorems and porisms. ix. 837. 
BACON (LORD), remarks illustrative of the scope and 
influence of the philosophical writings of. vill. 373. 
BALFOUR (DR), on the diurnal variations of the ba- 
rometer. H. iy. 28. 
BARBADOES, account of a hurricane at. H. i. 80. 
BARNES (DR THOMAS), results of ameteorological 
journal kept at Carlisle by the late Mr William Pitt 
during twenty-four years. xi. 418. 
