. Annals of Philosophy. 480 Index. Tartrate of potash, crystalline form of, 161. Temperature, comparative, of Pisa and Penzance, table of, 200. Thermoelectric instrument, new one de- scribed, 46. Thomson, Dr. on the atomic weight of boracic and tartaric acids, 245. Tin trade, ancient, as described by Mr. Hodgson, on the, 175. Todd, Dr. notice of his paper on the lu- minous power of insects, 384. Traill, Dr. on the detection of small quan- tities of arsenic, 131. Transactions of the Royal Society, ana- lyses of, 62, 143,227,298. U and V. Variation, diurnal, of the barometer, 468. — of the horiz
. Annals of Philosophy. 480 Index. Tartrate of potash, crystalline form of, 161. Temperature, comparative, of Pisa and Penzance, table of, 200. Thermoelectric instrument, new one de- scribed, 46. Thomson, Dr. on the atomic weight of boracic and tartaric acids, 245. Tin trade, ancient, as described by Mr. Hodgson, on the, 175. Todd, Dr. notice of his paper on the lu- minous power of insects, 384. Traill, Dr. on the detection of small quan- tities of arsenic, 131. Transactions of the Royal Society, ana- lyses of, 62, 143,227,298. U and V. Variation, diurnal, of the barometer, 468. — of the horizontal and dipping needle, 183. Vegetable alkalies, composition, according to different authorities, 314. Veratria, composition of, 47. Volcanos in activity, account of, 201. Underwood, Mr. on theColiseum at Rome, 448. Uraniate of barytes, analysis of, 261. lead, analysis of, 260. Uranite from Autun, analysis of, 235. Uranium, on, 253. ? oxide of, method of preparing, 244. of, 266. salts of, nature and composition W. M'alker, Mr. on some geometrical princi- ples connected with the trisection of an arc, 356. Williams, Dr. on the active power of di- latation of the heart, 181. Webster, Dr. analysis of a fragment of a meteor which fell in Maine, 236. Woodward, Mr. on the effects of transmit- ting electrical through other fluids, 28'f. Wollaston, Dr. notice of his paper on the same decussation of the optic nerves, 305. Zinc, sulphuret of, analysis of, 337. Zoological club, proceeding of, END OF VOL. VII. Printed by C. Baldwin, New Bridge-street, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London
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