INDEX to VOL. IV. 



/xCIDS, action of, on palladium, 

 230; carbazotic, 66; carbonic, agency 

 of, in decomposing water by the con- 

 tact of iron, 381 ; caseic, 71 ; citric, 

 from gooseberries, 152; free, on the 

 presence of, in the stomach, 3, 1 20 ; 

 hypophosphorous, 383 ; mellitic, 229 ; 

 muriatic, blue colour by the action 

 of, upon albumen, 153; sulphuric, 

 solution in, without oxidizement, 68. 



Addison (W.) on the influence of ter- 

 restrial radiation in determining the 

 site of malaria, 272, 326. 



Air, collecting for analysis, 384. 



Air-pump, Mr. Dunn's improved, 1 45. 



Airy's (Prof.) reply to Mr. Galbraith's 

 remarks on the earth's ellipticity, 364. 



Albumen and gelatine, vegetable, 69 ; 

 albumen, blue colour by the action 

 of muriatic acid on, 153. 



Alcoates, 265, 331. 



Alkali, a new vegetable, corydalin, 151. 



Alkalies and their carbonates, action of, 

 on iodides, 152. 



Aloes, bitter of, 66. 



Altitudes, Oltmann's tables for calcu- 

 lating, 1 94 ; an easily-constructed 

 barometer for, 234. 



Aluminum, preparation and properties 

 of, 147; chloride and other com- 

 pounds of, 149; seleniuret of, 150; 

 phosphuret of, 150; telluret of, 151 ; 

 arseniuret of, 151. 



Amalgamation of silver-ores, 234. 



Amber, observations on, 384. 



Ammonia, decomposition of, by metals, 

 155. 



Analysis of the carbonate of manganese, 

 22 ; of the chloride of Braunite, 99 ; 

 of Hausmannite, 100; of manganese, 

 26 ; of manganite, 97 ; of psilome- 

 lane, 102; of pyrolusite, 100; of 

 two new mineral substances, 113; 

 collecting air for, 384; of minerals, 

 459 ; of Ipecacuanha Branea, 459. 



Andes, peruvian, Mr. Pentland on, 115. 



Anhydrous crystals of sulphate of soda, 

 71. 



Arseniate of cobalt, 75. 



Arseniuret of aluminum, 151. 



Astronomical Ephemeris, new, 141, 248. 



Astronomy, 62, 73, 76, 134, 136, 141, 

 156, 173, 236, 248, 298, 337, 390, 

 392, 109. 



Aurora borealis, 317,337, 392,395,418. 



Barometer, Oltmann's tables for cal- 

 culating heights by, 1 94 ; account of 

 an easily-constructed, 234. 



Beachy Head, Mr. Ivory on a perpen- 

 dicular degree at, 6. 



Bees, some circumstances relating to, 

 60. 



Berzelius on vegetable albumen and ge- 

 latine, 6 j ; observations on amber, 384. 



— — — attack of, on Dr. Thomson, 

 450. 



Bicheno ( J. E. ) on the use of the English 

 language in Natural History, 454. 



Bitter of aloes, 66. 



Blue colour by the action of muriatic 

 acid upon albumen, 153. 



Books, new, 38, 50, 134, 135, 141, 220, 

 314, 315, 370, 396. 



Borax, varieties of, 233. 



Boruret of iron, 233. 



Botany, 227, 261. 



Botryogene, 153. 



Brandes on the preparation of conia, 

 231. 



Braunite, analysis of, 99. 



Brongniart (A.) on Websterite found 

 in the plastic clay of Auteuil, 81. 



Brown (R.) on the existence of active 

 molecules in organic and inorganic 

 bodies, 161. 



Buchan (Mr.) on the amalgamation of 

 silver-ores, 234. 



Buckland (Rev. Dr.) on a new family 

 of fossil plants, 225. 



Burney's (Dr.) meteorological obser- 

 vations, 78, 158, 23S, 318, 397, 465. 



Calcium, chloride of alcoate of, 270. 



Cannon-balls, method of ascertaining 

 the velocity of, 65. 



Carbazotic acid, 66. 



Carbon, iodides of, 155. 



Carbonate of manganese, analysis of, 22. 



Carbonic acid, agency of, in decom- 

 posing water by the contact of iron, 

 381. 



Caseic oxide, 71. 



Chemical action, influence of mag- 

 netism upon, 385. 



Children's (J. G.) abstract of Ochsen- 

 heimer's genera of the lepidoptera of 

 Europe, 278, 343, 444. 



Chloride of manganese, analysis of, 26; 

 of aluminum, 149; of sodium and 

 silver, 384. 



Chlorine, in black oxide of manganese, 



