20 



GENERAL INDEX OF VOLS. 1 — 12 OF THE 



Edinburgh Observatory, longitude of, xii. 



525. 



Edmonds ( R. ) on the meteor, June 29, 



1832, i. 306 ; on the visibility of stars by 



day, iii. 238 ; on the mirage, viii. 1 69. 



Education, scientific and general, viii. 



432. 

 Edwardsite, a new mineral, xii. 402. 

 Egerton (SirP.G.) on the ossiferous caves 

 of the Hartz and Franconia, v. 296; 

 on a stratum of recent marine shells in 

 Cheshire, vii. 326; on Ichthyosauri, 

 vii. 414 ; on the discovery of Ichthyo- 

 lites in N. Staffordshire, vii. 517; ca- 

 talogue of fossil fish, viii. 367 ; on the 

 peculiarities of structure in the cervical 

 region of the Ichthyosaurus, ix. 500. 

 Egyptians, on the complexion of the, xii. 



344. 

 Ehrenberg (Dr. ), notice of his collections 

 of dried Infusoria, and other micro- 

 scopic objects, ix. 90; new discovery 

 in palaeontology, ix. 158, 392 ; on the 

 adulteration of carmine, xii. 462. 

 Elastic bodies, on the collision of, viii. 65, 



fluids, evolved from volcanos, iii. 



1 59 ; vibratory motion of, in tubes, iii. 

 235, 



mediums, on the motion of small 



spherical bodies in, i. 40. 

 Elasticity of cast iron, i. 74 ; modulus of, 



of gold, iii. 20. 

 Electric spark from a natural magnet, on 



an, i. 49. 

 currents, new instrument for mea- 

 suring, iv. 293. 



storm, description of a, v. 418. 



action, on, v. 6. 



light, duration of, vi. 61. 



Electrical influence, mathematical laws 

 of, ii. 350. 



kite, caution to experimenters with, 



V. 317. 

 Electricity, x. 12, 57, 60, 63, 65, 93, 130, 

 133, 154, 171, 172, 175, 193, 241, 244, 

 267, 276, 280, 281, 317, 320, 326, 357, 

 358, 376, 425, 428, 433, 455 ; experi- 

 mental researches in, i. 61 ; iii. 38, 161, 

 253, 353, 449, 460; v. 161, 252, 334, 

 424, 456; vi. 34, 125, 171, 272, 334, 

 410; vii. 411, 421 ; xii. 206, 358, 426, 

 430 ; of the torpedo, i. 67 ; on the the- 

 ory of magnetic, ii. 201, 366 ; the velo- 

 city of, iii. 81 ; theory of thermo-elec- 

 tricity, iii. 205, 262; recent discoveries 

 in, iv. 291; on certain phaenomenaof, 

 iv. 340 ; on some elementary laws of, iv. 

 436 ; of tourmaline, v. 1 33; experiments 

 to measure the velocity of, vi, 61 ; its in- 

 fluence in germination,'vi. 157 ; vindi- 

 cation of Prof, Faraday's discoveries, vii, 

 421 ; electrical attraction, vii, 304; elec- 



trical balance, vii. 303,304; prismatic 

 decomposition of electrical light, vii. 

 299; electric currents through platinum 

 wire, vii. 388 ; viii. 114, 130, 400, 421, 

 455, 550; on the conducting power of 

 flames and of heated air for, ix. 176 ; dif- 

 ference between mechanical and galva- 

 nic, ix. 212; M. Nobili's discoveries in, 

 ix.234; electro-pulsations and electro- 

 momentum, ix. 1 32 ; voltaic, due to che- 

 mical action and not to contact, ix. 60 ; 

 on the construction of voltaic batteries, 

 ix. 283; new electro-chemical phaeno- 

 mena, ix. 53; electro-magnet, its feeble 

 attraction for small particles of iron, ix. 

 72, 220, 287 ; electro-magnet and per- 

 manent magnet, certain differences be- 

 tween, ix. 81 ; conducting power of 

 iodine for, ix. 450 ; remarkable results 

 of electro-magnetic experiments, ix. 

 452 ; voltaic, ix. 484 ; xii. 225 ; con- 

 ducting powers of wires for, xi. 192; 

 researches into the cause of voltaic, xi. 

 274 ; chemical composition of the elec- 

 trical apparatus of the torpedo, xii. 256; 

 current electricity, xii. 18, 293, 311, 

 539;electro-dynamicinduction,xii. 18; 

 electro-magnetic currents, interference 

 of, xii. 122; magnetic contact-breaker, 

 xii. 18; electro-magnetic motive ma- 

 chines, on, xii. 190; researches relative 

 to the torpedo, xii. 196; peculiar vol- 

 taic conditions of iron and bismuth, 

 xii. 48 ; voltaic combination, xii. 364 ; 

 on the primary forces of, xii. 486 ; ca- 

 loric, and ponderable bodies, analogy 

 between, v. 1 10. 

 Electro-chemical theory of Sir H. Davy, 



subsidiary hypothesis to, viii. 170. 

 Electro-magnet, its power to retain its 

 magnetism, iii. 122 ; curious properties 

 of, iii, 124, 

 Electro-magnetism, vii, 231; of metal- 

 liferous veins, iii. 16, 17; on certain 

 experiments in^ iii. 18; experimental 

 researches in, iii. 145 ; on its applica- 

 tion to manufactures, vii. 305, 306. 

 Electro-magnetic rotation, viii. 521 ; ba- 

 lance, X. 358; machines, x. 12, 455. 



conducting powers of wires, 



xi. 1. 

 Electro-motive battery, a new, i. 48. 

 Electrophorus, on a modification of Vol- 



ta's, ii. 363. 

 Elevation, on the parallelism of contem- 

 poraneous lines of, iv. 404. 

 Elliptical polarization, cause of, xii. 10. 

 Emetine, preparation of, xi. 165. 

 Emmett (Lieut.- Col.) on the carbonic 

 acid in the atmosphere, xi, 225 ; me- 

 teorological observations made at Ber- 

 muda in 1836-37, and notice of an au- 



