648 



INDEX. 



of this experiment, 2 upon pure tin, 

 ibid. upon lead, 3 upon zinc, ibid. 

 upon silver, 4 upon gold, ibid. 

 upon tin, 5, 6, 7 remarks upon ham- 

 mering metals, 6 experiment with 

 spongy platinum, 10 general obser- 

 vations upon the process and results 

 of these experiments, 1 1 . 



Daniell, Mr. J. F., on a new register 

 pyrometer, 338. 



Davy, Sir Humphry, analysis of the 

 life of, by Dr. Paris, 347 account of 

 his birth and family, ibid. education, 

 ibid. his first experiments in che- 

 mistry, 348 appointed chemical as- 

 sistant to the Pneumatic Institution of 

 Bristol, 349 interesting experiment 

 with two pieces of cane, 351 new 

 galvanic experiments, 352 appointed 

 assistant lecturer in chemistry to the 

 Royal Institution, ibid. galvanic 

 battery without metallic substance, 

 853 appointed professor of chemistry 

 to the Royal Institution, 354 elected 

 Fellow of the Royal Society, 35 G 

 decomposition of the alkalies, 358 

 his chloridic theory, 572 his mar- 

 riage, 573 Mr. Faraday's first intro- 

 duction to him, 575 invention of the 

 safety-lamp, 577 death, 583 com- 

 parison of the characters of Davy and 

 Wollaston, 583. 



Daubeny, Dr., on the occurrence of 

 iodine and bromine in mineral waters 

 of South Britain, 337. 



D'Aubuisson. M., on the resistance op- 

 posed to water moving in pipes, 157. 



Degree, the exact measure of a, 370. 



De Lassaux's mode of erecting light 

 vaults over chixrches and similar 

 spaces, 224. 



Detonating matches, Dr. Ure on, 140. 



Diamonds made phosphorescent by heat, 

 after electrization, 32. 



Dipping needle, improvement in the 

 construction of the, 60S. 



Domes, account of, erected at Vienna, 

 without centering, 224, 225. 



Donati, Dr., on the phenomena observed 

 during the last eruption of Vesuvius 

 in 1828, 296 sudden shock and 

 eruption, 298 discharge of liquid 

 lava, 300 explosion of gas, 304 

 vertical section of the great cone, 306. 



Doolittle, Mr., account of the manufac- 

 ture of charcoal by, 184. 



Drowning, restoration from, by insuffla- 

 tion of the lungs, 190. 



Drummond, Lieutenant, on the illumi- 

 nation of light-houses, 344. 



Dtiberga, M., on the power of carbon 

 to destroy bitterness in certain bodies, 

 619. 



Dumas, M., on oxamide, 382. 



Duperrey, L. J., on the figure of the mag- 

 netic equator, 607. 



Du Petit Thouars, remarks upon his 

 theory of the growth of wood, 479, 

 480. 



Dutrochet's remarks upon the circulation 

 in celadine, 561. 



E. 



EGGS, change of air in, during incuba- 

 tion, 435. 



Egyptian chronology, by Professor 

 Renwick, 458 agricultural labours 

 of the ancients regulated by the 

 heliacal rising of remarkable stars, 

 459 earliest settlement of a colony 

 in Egypt, 462 Sothic period, 463 

 Chaldean records used by Ptolemy, 

 464 remarks upon the origin of 

 letters, 466 chronologies compared, 

 468. 



Elastic fluid, remark upon the velocity 

 of an, 599. 



Elaterium, new principle obtained from, 

 532. 



Electrical accumulation, laws of, 380. 

 relation of bodies to heat, 568. 



Electricity increased by a double copper 

 plate, 34. 



of the winds, 198. 



effects of, upon fluor spar, 



271. 

 Electro-magnetic telegraph, remarks 



upon an, 37. 

 magnet, account of a powerful, 



by Professor Moll, 379. 



magnets, account of powerful, 



by Professor Henry and Dr. Tea 

 Eyck, 609. 



Elevation of the Morea, 563. 



Elk, description of the horns of the 

 Prussian, 118. 



Elliptic polnrization,laws of, as exhibited 

 in the action of metals upon light, 

 340. 



Elm-trees, cure of wounds in, 200. 



Emmett, Professor, on iodide of potas- 

 sium as a test for arsenic, 173. 



on the preparation 



of nitrogen, 384. 



English yard, proportion between the, 

 and French metre, 599. 



Erman, M., on the direction and inten- 

 sity of the magnetic force at St. Pe- 

 tersburgh, 604. 

 Eye, surgical recovery of an,*191. 



