450

Pasch, M., experiments made by, 182
Pastenaca, described, 217

Patent claims, examination of, 399
Pearse, John, his remarks on Captain
Pakenham's temporary rudder, 75—
on the stowage of ships, 96
Pelvettini, Giovanni, of Corfu, 186
Pendulum experiments, account of, 1
Pendulums, single, observations on, 365
Penn, Richard, his new mode of secret
writing, 27
Pig-faced lady, 36

Pinite, found in granite, 440
Piperine, preparation of, 418

Plants, influence of substances on, 203
-Poisoning of, by their own juices,
204-On the naturalization of, in
colder climates, 221-Rise of the sap
in, 379

Platina, spongy, preparation of, 193
chlorides of, 420

muriate of, 193
Pleischel, M., 193

Plisson, M., experiments by, 419
Plumbago, on the use of, 400
Poisson, M., principle laid down by, 65
-Theory of, 147--Alluded to, 422
Pons, comet of, computation respecting,
167

Porrett, electro-filtration of, 374
Porta, Baptista, apparatus of, 327
Potash, sulphate of, 492
Potassium, remarks on, 412
Potatoe-buds, plantation of, 205

starch, experiments on, 399, 415
Potatoes, subterraneous growth of, 205
preservation of, 426
Powder, earthy, 431
Prague, longevity at, 251
Prinsep, M., 432

Prussia, mortality in, 248
Pynoscope, described, 180
Pyrennees, heights of, 436

Queenston, village of, 49
Quetelet, Mr., 248

Radiating electricity, observations on,

134

Ray, dimensions of a large one, 219
Raynal, Abbé, 426

Rees, Dr.. Encyclopædia of, 323
Reflection, modification of light by, 159
Respiration and combustion,comparison
of, 209

Rhodium salts, 413

Richardot, M., his method of obtaining
roses, 204

Rive, de la, 407, 411
Robertson, Mr., 256
Robison, Professor, 323
Rock-crystal, hardness of, 180
Roman antiquities, 186
Rome, population of, 252
Romoe, province of, 430

Roses, method of obtaining, 204
Rostan, a French writer, 285
Roulin, M., pastenaca described by, 217
Royal Institution, proceedings of, 350
Roxburgh, Dr. on precipitates, 309
Rudder, temporary, invented by Capt.
Pakenham, 75

Ruff, Dr., on the resin of indigo, 416
Russia, antiquarian researches in, 186

Sabine, Edward, his account of M. Bes.
sel's pendulum experiments, 1
St. Bernard, meteorological observations
made at, 436

St. Helena, geological notices of, 101—
Journal of tides kept at, 172
Salt, neutral, formation of, 294
Sand, non-conducting power of, 299-
on the flowing of, under pressure, 396
Sandstones, different kinds of, 54
Sanguinari, a new vegeto-alkali, 199
Savery, M., his model of a steam-engine,
338

Scandinavia, mountains of, heights of,
436

Scent, organ of, observations on, 30
Scherer, Col., substance found by, 431
Schouw, Professor, 436

Schuebler, M., his experiments on ice,
187

Schulten, N. de, on a passage in La

grange, 400

Scrophula, on the cure of, 238
Scudamore, Dr., 78

Sea, its temperature at different depths,
442

Sea-serpent, American, 207

Sea-water, supposed presence of mer-
cury in, 192

Seebeck, M., his experiments on metals,

183

Serres, M.de, on caverns and fissures, 216
Serullas, M., on the bromide of carbon,
410-on potassium and sodium, 412

Soklen, Count De, 430

South, Dr., poem by, 288

South Sea Islands, articles from, 378
Sparmann, Dr., his observations on the
hyæna, 213

Speech, audible qualities of, 380
Spicula, microscopic, 201

Spider, gossamer, 205

Spiders, instinct of, 206

Spiricella, description of, 440

Starch, experiments on, 415-prepara-
tion of sugar from, 418

Stars, fixed, lunar occultations of the,
172

Statistics, medical, elements of, 243
Steam-engine, French claim to its dis-
covery, 156

on the early history of, 322

Storms and earthquakes, 436
Street names, enamelled, 399
Stroef, M., 186

Sugar, solutions of, their specific gravity,
198

Van Mons, M., 229

Vapour, elastic, application of, 325
Vases of the ancients, 384

Vauquelin, M., experiments of, 431
Vaux, M. de, 91, 92

Vegetable metamorphosis, 356
Vesuvius, phenomena of, 132

Vibrating surfaces, nodal figures of, 382
Vibration, arc of, 6

Vicat, M., experiments of, 182
Vine, seedling, 229

Vitreous humour, ossification of, 423
Vitro-crystalline object glasses, construc-
tion of, 179

Voget, M., experiments by, 418
Volage, experiences the shock of an
earthquake, 429

Volta, supposition of, 74

Voltaic electricity, ignition of wire by,

189

Wadd, W., Esq., his observations on
the organ of scent, 30-medico-chirur-
gico commentary on Shakspeare, 234
Walcker, A., 90

M., his communication respecting
the mineral water of Bath, 78
Wallis, Dr., on music, 287
Water, supply of to the metropolis, 350
conductibility conferred by, 407
companies, table of the, 352
Water spout, rise of water in it, 73
Weather-glass, zoological, 425

Weinrich, M., 418

Wells, Dr., 245

Welter, experiments of, 64

Weston, C.H., Esq. his geological notices
of St. Helena, 101-on the manufac-
ture of indigo, 296
Westphalia, fulgorites in, 202
Wheat flour, detection of potatoe starch
in, 399-adulteration of, ibid.
Wheatstone, Mr., on phonics, 379
Wind, influence of woods on the, 95.
Windsor Forest, mineral springs in, ana-
lyzed, 89

Wine must, preservation of, 418
Wire, ignition of, by voltaic electricity,

189

Wirgmann, M., jun. 437

Wöhler, M., experiments of, 191, 194
Wood, conduction of heat by, 187
Wood-engraving, principles of, 382
Woods, atmospheric influence of, 91
Wool, on the fatty matter of, 197
Worcester, Marquis of, 323
Wotton, his arrangement of animals,
264

Writing, alphabetic, origin of, 433

-, secret, new mode of, 27

Yttrium, decomposed, 195

Young, Dr., experiment of, 163-theory
of, 184

Dr. Thomas, 324

Zeller, M., experiments by, 203
Zenneck, his Pynoscope described, 180
-on the preparation of alizarine, 198
Zoological weather-glass, 425