INDEX. 



6i: 



Halting (M. P.) on the limit to the ac- 

 tion of certain chemical reagents, 604. 



Heat, on the change of crystalline form 

 by, 255 ; on the production of, by vol- 

 taic electricity, 308. 



Henry (Prof. J.), contributions to electri- 

 city and magnetism, No. IV. on electro- 

 dynamic induction, 482 ; theoretical 

 considerations relating to the phaeno- 

 niena described in this and the prece- 

 ding communications, 498. 



Herschel (Sir J. F. W.), anniversary ad- 

 dressatthe Astronomical .Society, 150. 



Hils conglomerate, 5C7 ; clay, ib. 



Howard (Luke) on a cycle of eighteen 

 years in the mean annual height of the 

 barometer in the climate of London, 

 552 ; on a remarkable depression of the 

 barometer in November 1840, 553 ; on 

 the prevailing winds, mean tempera- 

 ture, and deptli of rain in the climate 

 of London, 559. 



Hullmandel (C.) on the subsidence of the 

 coast near Puzzuoli, 232. 



Hume's process, on testing for arsenic and 

 antimony by, 442. 



Hunt (R.) on a remarkable solar bow, 158. 



Hydroteliuric a-ther, formation and ana- 

 lysis of, 78. 



Hylaeosaurus, 551. 



Hyposulphite of soda, new method of pre- 

 paring the, 211. 



Ice, dispersion of Shap Fell granite by, 589. 



Iguanodon, portion of the lower jaw of an, 

 551. 



Indigo, action of chlorine and bromine 

 on, 207 ; action of potash and soda 

 on, 280. 



Indopten, chloride of, 207. 



Induction, electro-dynamic, 482; pro- 

 duced at the moment of the beginning 

 of a galvanic current, &c., 483 ; on ap- 

 parently two kinds of, 492. 



Infusoria, siliceous-shelled, list of, 453. 



Innes (George), elements of the annular 

 eclipse of the sun that will happen on 

 October 8, 1847, 603. 



Inorganic compounds, action of, when in- 

 troduced into the blood, 547. 



Iodine, sensibility of starch as a reagent 

 for, 604. 



Iron, notice of an undescribed subsulphate 

 of, 397; sensibility of a reagent for 

 protoxide of, 606 ; for peroxide of, ih. 



Iron ores, new method of analysing, 90. 



Jervin, on the coiiiposilion of, 35. 



Joule (J. P.) on the production of heat by 

 voltaic electricity, 308. 



Kane (K.) on the true constitution of 

 Gros's plalina salts, 293; Elements of 

 Chemistry, reviewed, 304. 



Kemp (VV.) on supposed moraines of an- 

 cient glaciers in Scotland, 337. 



Kerguelen's Land, on the birds of, 558 ; 

 geological remarks on, ib. 



Kersten (M.) on a new method of analy- 

 sing metallic sulphurets, 211. 



Kopp (H.) on the atomic volume and 

 crystalline condition of bodies, and on 

 the change of crystalline form by means 

 of heat, 255. 



Kiihn (M.), analysis of berzeliit, 157; 

 of a native phosphate of copper, 236. 



Lambert (J.) on the mineral veins of the 

 Sierra Almagrera, 561 ; on the Sierra 

 de Gador and its lead mines, 563. 



Latham (R. G.) on the science of phone- 

 tics, 124. 



Laurent (M.) on the oil of esdragon, 438. 



Lay(G. T.) on part of Borneo Proper, 232. 



Lay ( — ), the scholar's lute among the 

 Chinese, 557. 



Lead, sensibility of a reagent for, 607. 



Lepidomelane, analysis of, 77. 



Levol (M.) on minium, 237. 



Liebig (Prof.) on the preparation and for- 

 mation of yellow prussiate of potash, 5 1 5. 



Light, apparent new polarity in, 139. 



Lightning, experiments relating to the 

 defence of shipping from, 172. 



Lignite near Messina, on a bed of, 566. 



Lime, sensibility of a reagent for, 606. 



Lipinic acid, 422. 



Lloyd's (Capt.) letter to Mr. Murchison 

 on a coral reef in the island of Mauri- 

 tius, 526. 



Logan (W. E.) on the beds of clay lying 

 beneath the coal seams of S. Wales, 2 17. 



London Electrical Society, 409, 520. 



London Institution, 234. 



Lonsdale (W.) on the age of the lime- 

 stone of S. Devon, 223. 



Lubbock (Sir J. W.) on a theorem of Fer- 

 iTiat, 552 ; on an irregularity in the 

 height of the barometer, 555. 



Lyell (Chas.) on the geological evidence 

 of the former existence of glaciers in 

 Forfarshire, 579. 



M. (W. A.), remarks on Messrs. Francis 

 and Croft's abstracts, 200; note on, 300. 



Mackeson (H. B.) on a large saurian dis- 

 covered near llythe, 568. 



Maclear (T.) on the difference of longitude 

 between the observations of Madras and 

 the Cape of Good Hope, deiluced from 

 moon-culminating stars, 604 ; observa- 

 tions made at the Cape of Good Hope, 

 in the year 1838, with Bradley's zenith 

 sector, for the verification of the Abbe 

 (le Lacaille's arc of the meridian, 593 ; 

 on some experiments made with an in- 

 variable pendulum ,602. 



