476 
Ovis. North American quadruped sup- 
posed to belong to the genus, 8 
Palmer (Mr. G.) Extract from his spe- 
cification for purifying coal-gas, 375 - 
Paper, improvement in the manufac- 
ture of, 74 
Parker (Mr. S.) on new method of pu- 
rifying coal-gas, 292 
Paienis for new ventions, 76, 155,235, 
316, 395, 469 
Pendulum. Experiments for determin- 
ing the length of seconds of, b 
Capt. H. Kater, 90, 173, 364, 415 
Philips (Sir Rich.) New theory of uni- 
verse by, 141 
Philosophical Transactions «f the Royal 
Society of London, ~ 58, 62 
Phosphorus. New experiments onsome 
of the combinations of, 440 
Platina, singular mass of, 382 
Pelar expeditwn, accounts of, 71, £23, 
305, $87 
Potash, erythrat of, Al 
Prase discovered in Scotland, 316 
Riddle (Mr. Ed.) remarks by, on paper 
by Major-Gen, Brisbane on the 
chronometer, 409 
Roman numerals. On the origin of, by 
Dr. Jos, de Mattheis, 61 
RoyalAcad.of Brussels, Transac. of, 146 
Royal Geological Society of Cornwall, 
Transactions of, 301 
Royal Insitute of France, proceedings 
of, 62, 145, 465 
Royal Institution, Lectures at, 148 
Royal Scotch Thistle, extraordinary, 391 
Royal Society of London, Transactions 
of, 58, 62 
Royal Society of Edinburgh, Transac- 
tions of, ‘ 60, 451 
Safety-lamp, ou the, 224 
Salt. Method of making, in the Great 
Loo Choo island, 883 
Schemniiz,acc. of Mining college at, 21 
School of Physic m Ireiand, 148 
Seeds. On fructification of, 81 
Seeds, On preservation of, 456 
Serpents. On, 233, 315 
Serpents. On the structure of the poi- 
sonous fangs of, 457 
Silver and gold. Process of extracting 
by amalgamation from other ores, 26 
Smuh (Thos, Esq.), on the structure of 
the poisonous fangs of serpents, 457 
I N-D E &, 
Society for the encouragement of in- 
dustry in France, prizes proposed 
by, 144 
Soctety of Sciences at Haarlem, ‘Trans- 
actions of, 147, 223 
Suda, erythrat of, A 41 
Svund. On velocity of, 214 
Specific gravity of the human body and 
sea-water. On the difference be- 
tween, 282 
Specific heat of bedies from their ex- 
pansion. On, by Mr. Thos, Tred- 
gold, 251 
Spencer Knight, Esq. on difference be- 
tween specific gravity of the human 
body and sea- water, 282 
Spurzheim (Dr.) on phrenology, 300 
Steam-engines in Cornwall, 64, 225, 
313, 390, 467 
Sugar from the beet-root, produce of, 
in Franee, 384 
Swallow. On the, by Mr. Gavin Inglis, 
271 
Tar light for street-lamps, 316 
Tiedgold (Mr, Thos.) on elasticity of 
air and velocity of sound, 214; on 
specific heat of bodies from expan- 
sion, 251 
Universe, New theory of, 141 
Upington, Henry, Esq. on electrical in- 
creaser for manifestation of small 
portions of the electric fluid, 47; on 
the question whether music is neces- 
sary to the orator, 161, 241, 401 
Ure (And., M,D.) on relation between 
muriatic acid and chlorine, 101 
Uric acid. Observations on treating 
with nitrous acid, by Dr. G. Brug- 
natelli, 30 
Fessel, air-tight, , 233 
Volcano, pseuav-, in Staffordshire, 72 
Water-burner, American, 385 
Water, experiments upon, at Black 
Rock, near Cork, by Prof. Davy, 1 
Wuter-spout destructive, 68 ; theory of, 
216 
Watt (Dr.), Bibliotheca Britannica by, 
373 
Westall (Mr.W.), Views of caves in the 
N.W. ridingof Yorkshire, by 61 
Yeates (Thos.), variation chart of the 
navigable globe by, 222; on magne- 
tical variation, 295 
END OF THE FIFTY-SECOND VOLUME, 
Prniedty Rand wh Taylor, Shoe Lane, London, 
atm NY 
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