INt)E5t. 61 



Daniell (J. F., Esq.), observations of, on the radiation of heat in 

 the atmosphere, in reply to M. Gay-Lussac, xviii. 305-312. 



• correction of an error by, in the " Meteorological Es- 

 says," XX. 74-7S. On the barometer, ibid. 93 



Darwin (Dr.), hypothesis of, that sensations consist in the motion 

 of the nervous fibres, examined, i. 47 



. theory of, concerning sensorial power, exploded, ii. 229 



Datisca cannabina, on the use of, in dyeing, ii. 435 



Daturium, a new vegetable alkali, notice of, xi, 204 



Davis (J. F., Esq.), notice of his remarks on the Chinese year. 

 xvi. 331 



Davt (Sir H.), on the wire gauze safe-lamps, for preventing ex- 

 plosions from fire-damp, and for giving light in explosive at- 

 mospheres, in coal-mines, i. 1. Statement of experiments that 

 led to his discovery, ibid. Description of the instrument, 3. 

 Directions for its use, 4. Proofs of its utility, 131. Ac- 

 count of its practical application, with observations by Sir H. 

 Davy, 303. Remarks of, on aqua regia, or nitro-rauriatic 

 acid, 67. A mistake of, corrected, 231. Observations of, on 

 the analysis of the native caustic lime from Tuscany, 262, 

 On the analogies between undecompounded substances, and on 

 the constitution of acids, 283. Vindication of his disco- 

 veries respecting the properties and combinations of chlorine, 

 284, note. On the prussic basis and acid, 288 



experiments of, and new views on flame, ii. 124-127. Notice 



of his further experiments on flame, 463. Efticacy of his wire 

 gauze safe-lamps, 464 



retrospect of his discoveries, iii. vii. Notice of his in- 

 vestigations on flame, 130. Observations of, on the cause of 

 the diminution of the temperature of the sea on approaching 

 land, or in passing over banks in the ocean, 368. Remarks of, 

 on a note in No. II. of this Journal, 378 



observations of, on the longevity of trees, iv. 1 1 



the Rumford gold medal conferred on him by Uie Royal 



Society, 131 



abstract of his discoveries and researches concerning flame 



