INDEX ro VOL. LIL 
Accum (fred.) Treatise on Che- 
mical tests, 140 
Air, On elasticity of, 214 
Algebra and Vuigar arithmetic. On 
comparative powers of, by William 
Gutteridge, 88 
Aikols new vegetable, 892 
Allan (Mr. Matthew). On chemical 
philosophy, 53, 118 
Amalzamation. Process of, for extract- 
ing gold and silver from other ores, 
used at Halsbruck in Saxony, 26 
American (North) quadruped. Ac- 
count of, by George Ord, 8 
Ammonia. 
Apvllontcon. 
Erythrat of, 43 
On the performance of, 
171 
Arcs, comparison between chords of, 
employed by Ptolemy and those 
> now in use, 454 
Arithmetic (Vulgar) and Algebra. On 
comparative powers of, 88 
Arithmetical complements, on, 211 
Arnott (Mr. G. A, Walker). On diffe- 
rence between chords of arcs em- 
ployed by Ptolemy and those now in 
use, 454 
Arsenic, test of poisoning by, 73; re- 
medy against, 379 
Asst cS ciety, proceedings of, 141 
Astronomical cireie at Greenwih, On 
the, 52 
Astronomy of the Orientals, On, 168 
Atmespheric phenoment, 75 
Barytes, erythrat of, % 40 
Bict (M.) On the operations under- 
taken to determine the figure of the 
earth, 119 
Biquadratic equations, Solution of, S78 
Botany, guide to, by Jas. Millar, M.D. 
Gl 
Brazil, scientific researches in, 313 
Bright (Richard, M.D ). On the gold 
and silver mines of Hungary, :2; 
process of amalgamation for extract- 
ing gold and silver from other ores, 
26; Hungarian agriculture, 283 
Bristane (Major-Gen.) remarks on pa- 
per by, onthe chronometer, 409 
Brugnatelli (Dr. Gaspar), on treating 
uric acid with nitrous acid, and new 
acid thence produced, called “ Ery- 
thric, SO 
Brussels. Transactions of Royal Aca- 
demy of, 146 
Cast lron Bridge, 234 
~Chemical philosophy. On, by Mr. Mat- 
thew Allan, 53,113 
Chemical science. Elements of, by J. 
Murray, 60 
Chiorime. On relation between, and 
muriatic acid, by Dr. Ure, i01; by 
Dr. Murray, 195 
Chronometer, remarks on paper by Ma- 
jor-Gen. Brisbane on the, . 409 
Coal-gas, New method of purifying, 
292, 371—375, 467 
Cual-mine, explosion at, 67 
Conotly (Mr. Jos.) Telegraphist’s Vade 
Mecum by, 374 
Cow-tree, 382 
Cimea, Greek Antiquities in, 468 
C:ocodile, remains of, 68 
Davy (Sir Humphry), on some combi- 
nations of phosphorus, 440 
Davy (Professor Ed ), experiments on 
hard water at Black Rock, near 
Cork, 1 
Dry-rct, on the means of curing, 131 
Dupin (Chev,), on the maritime works 
and civil engineering of France and 
England, 132 
Earth. On the operations undertaken 
to determine the figure of, by M. 
Biot, 119 
Earthquake, 39% 
Earthquakes. Observations on the phe- 
nomena of, by the Rev. John Mi- 
chell, 18S, 254, 323 
Edinute. New mineral found at Edin- 
burgh, 66 
Electrical experiments, 376 
Electrica! Increaser, for manifestation 
of small portions of theelectric fluid, - 
account of, by H. Upington, Esq. 47 
Electrical p'anwpheres, improvement on 
the method of forming, 298 
E ythrais of lime and barytes, 40; of 
potash and soda, 41; of ammonia, 
4S; of iron, 44; of lead, 45. 
Erythric acid, on ; 30 
Evolutin. Improvementsin, — 34} 
Eue. New discovered membrane in, 74 
Fue-damp, of, and the means of pre- 
serving coul-mines from its explo- 
sion, 137 
