INDEX TO VOL. IV. 



Abbott (R.) on the variation of a 

 triple integral, 42. 



AcaroicI resin, 163. 



Achromatic eye-pieces, single, con- 

 struction and use of, 195. 



Actinograph, or self-registering pho- 

 tometer, for meteorological pur- 

 poses, 209. 



Actinometers, photometers, &c., in- 

 competent to give absolute measures 

 of either heat or light, 389. 



Addison (W.) on the distribution of 

 the air-passages, and of the modes 

 of formation of the air-cells of the 

 lungs, 381. 



Aerolite, 134. 



Afzelius (Dr. Adam), notice of the 

 late, 18. 



A ins worth (W.), geological and bo- 

 tanical notes on Northern Syria, 57. 



Air, inductive capacity of, 41. 



Airy (G. B.), experiments on iron- 

 built ships, for the purpose of dis- 

 covering a correction for the devi- 

 ation of the compass produced by 

 the iron of ships, 140, 141. 



on the theoretical explanation of 



an apparently new polarity of light, 

 239, 247. 



on the rise and fall of the tides 



in the Thames, 330. 



on the meteorological instru- 

 ments at the Royal Observatory, 

 Greenwicli, with which the meteo- 

 rological observations have been 

 made from November 1840 to July 

 1841, 330. 



on the laws of individual tides at 



Southampton and Ipswich, 415. 



Albert of Saxe-Coburg and Gotha 

 (H.R.H. Prince), the address of 

 congratulation on the occasion of 

 his Royal Highness's marriage with 

 Her Majesty the Queen, 204; the 

 answer of His Royal Highness, 

 205. 



, address of congratulation on the 



occasion of the late traitorous attack 

 of an assassin, 237. 



— — , address of congratulation on 



the birth of the Princess Royal, 

 281. 



Albert of Saxe-Coburg and Gotha 

 (H.R.H. Prince), address of con- 

 gratulation on the birth of the Heir 

 to the Throne, 332. 



, address of congratulation on the 



providential escape of Her Majesty 

 and His Royal Highness from the 

 attack of an assassin, 392. 



Algebraic series, on the summation 

 of, 45 G. 



Alderson (Dr.) on the difference of 



colour in different parts of the bodies 



of animals, 165. 

 Alison (Rev. A), notice of the late, 1 76. 

 Alkaline and earthy bodies in plants, 



on the formation of, 131. 

 Allenheads, meteorological journal for 



1841 kept at, 221, 297, 371. 

 Alten, meteorological observations 



made at, 195, 229. 

 Amarythrine, chemical examination 



of, 233. 



America, magnetical observations 

 made on the north coast of, 4. 



, magnetic observations on the 



west coast of, and the adjacent 

 islands, 288, 465. 



Ammonia, resin of, 219. 



, its action on biniodide and per- 



chloride of platinum, 380. 



Annual tissues, the non-vascularity 

 and peculiar uniform mode of orga- 

 nization and nutrition of, 308. 



tissues, on the supposed deve- 



lopement of from cells, 468. 



Animalcule, parasitic, of the human 

 skin, a newly discovered, 455. 



Animals, on the difference of colour in 

 different parts of the bodies of, 165. 



, on the relation between the 



respiratory organs of, and the pre- 

 servation of independent tempera- 

 tures, 474. 



Anniversary Meetings: Nov. 30, 1837, 

 4; Nov. 30, 1838, 84; Nov. 30, 

 1839, 167; Nov. 30, 1840, 250; 

 Nov. 30, 1841, 331 ; Nov. 30, 1842, 

 399. 



