the Royal Academy of Inscriptions, at Paris, 193, 194.-In
mathematics and geology, by the Royal Academy of Copen-
hagen, 194.-In Astronomy, by the Royal Academy of Sci-
ences of Naples, 345.-In medicine, by the Royal Society of
Sciences, at Paris, 361, and by the Society of Practical Medi-
cine, at Paris, 362.-In philology, by the Royal Society of
Gottingen, 395.

Publications, (New) select list of, 199, 397.

Purple Colour, new, for oil-painting, 380, 381.-Of cassius, new
method of preparing, 385.

Purpuric Acid, directions for preparing, 373, 374.

Pyroligneous Acid, proved not to be discovered by the French,
368, 369.

Q.

Questions. See Prize Questions, Scientific Questions.

R.

Royal Society, proceedings of, 337.-List of its officers, 338.

S.

San Antonio, capuchin mission of, described, 266.

Santa Maria, a capuchin mission in Spanish Guayana, present
state of, 283, 284.

Scientific Questions, proposed by the Royal Academy of Sciences,
&c., at Brussels, 194, 195.

Sea-Water, analysis of, 167.

Siberia, account of the mammoth or fossil elephant discovered
in, 95-108.

Silver, Persian mode of purifying, 160-On the oxygenation of
copper and silver, 168-170-On the decomposition of the
chloride of silver, by hydrogen and zinc, 374, 375.

Smoke, observations on some vulgar notions concerning, 245-247.
Smut in wheat, prevented, 348.

Societies, (proceedings of).-The Royal Society, 337, 338.-The
Horticultural Society, 339-344.-The Royal Geological
Society of Cornwall, 354, 355.

Soda alum, analysis of, 386.

Spider, singular anecdotes of, 174-Floatage of, in the air,
accounted for, 249, 250.

Spirit of wine, economical mode of rectifying, 381.

Stars, investigation of the corrections of the places of, for
aberration and nutation, 21-27-Observations on the transits
of, 84-Experiments on the light of, 92.

Stavesacre, new vegetable alkali found in, 154.

Steam Boats, list of, employed on the river Mississippi, 152—

List of those building, 153-Account of the progress of steam
navigation in Great Britain, 240, 241, 242, 243-List of steam
boats now plying on the river Clyde, 241, 242.

Steam-Pits, for forcing plants, notice of, 340.

Steel, Persian mode of making, 160, 161.

Stomach, beneficial effects of the white oxide of bismuth, on a
severe disorder of, 295-298.

Suicides, number of, in Paris, 189.

Sun's rays, effects of, on magnetism, 383.

Swayne (Rev. G.), on the importance of manufacturing British
opium, 234, 235-Description of an apparatus for that pur-
pose, 236, 237-Instructions for it, 238, 240.
Sweden, notice of the universities of, 189.

T.

;

Tar (coal), observations on a substance produced during the
distillation of, 287-290.

Taylor's and Martineau's (Messrs.), apparatus for producing
gas from oil, &c., described, 120-124.

Thenard (M.) observations of, on oxygenated water, 114-120-
154, 155.

Thermometer (differential), description of, 218-220.

Thomson's (Dr.), mode of obtaining nickel, pure, 161, 162-His
analyses of coal, 163, 164.

Tinning, process of, 145-151.

Tin-plate, manufacture of, described, 141-151.

Titanium found in iron ore, 167.

Transit instrument, observations on stars with, 84.

Trees, mode of ingrafting, 154-On the latitude of, in Sweden,
173.

Turnips, lime a remedy for the fly in, 155.

Ulmin, artificial, 392.

U.

Universities of Germany, notice of, 188-and of Sweden, 189.
Upata (a capuchin mission in Guayana), described, 269, 270-
State of the plantations in its vicinity, 271.

Uric acid, action of nitric acid, chlorine, and iodine, on, 157-159.
Note on the animal substances which generally accompany
uric acid in calculi, 370-373.

Urinary concretion, analysis of, 361.

V.

Vapour (aqueous), table of the force, density, and expansion, of,
at different degrees of temperature, from 0° to 92o, 306-308-
observations thereon, 308-311-table of the force of vapour,
and the full evaporating force of every degree of tempera-
ture, from 20° to 85°, expressed in grains of water, that would

be raised per minute, from a vessel of six inches in diameter,
supposing that there were no vapour already in the atmos-
phere, 311-314-observations thereon, 314-321-table of
results, 322.

Vauquelin (M.), on the action of nitric acid, chlorine, and iodine,
157-159.

Vegetable alkali (new), notice of, 156, 157-378.

Vegetables, phosphoric acid found in, 382.

Vermont, notice of scintillating limestone in, 356, 357.

Vertical fire, observations on M. Carnot's theory of defence by,
290-295.

Volcano of St Vincent's, notice of, 251, 252-analysis of dust
from it, 252.

Voltaic pile, new, notice of, 177-180.

W.

Water, mode of preserving sweet, suggested by Mr. Henry, 7, 8,
-analysis of the waters of the Dead Sea, and of the river
Jordan, 164, 165-preservation of, at sea, 166, 167—ana-
lysis of sea-water, 167.

Watt (Mr. James), biographical memoir of, 136-141.
Watts (Mr.), illiberal remarks of, on Captain Kater's experiments
for determining the length of the seconds' pendulum, 259.
Wavellite, analysis of, 351.

Whale, skeleton of, found, 172-its dimensions, 172, 173.
Wheat, mildew in, how prevented, 154-rate of the increase of,
345-smut in prevented, 348.

Wines of Etna, strength of, 168.

Wolfe's apparatus, new one, described, 384, 385.

Xanthic oxide, 209, note.

X.

Y.

Yeats (Dr.), on the beneficial effects of the white oxide of bis-
muth, in a severe affection of the stomach, 295-298.

Z.

Zamboni (M.), new voltaic pile of, described, 177-180.

END OF VOL. VIII.

London-Printed by W. CLOWES,
Northumberland-court, Strand.