INDEX to VOL. XVII. 



AbEL (F. A.), contributions to the 

 history of explosive agents, 395. 



Acid, on hydrofluoric, 256. 



Acoustic figures of vibrating surfaces, 

 notice of, 145. 



Airy (Gr. B.) on the diurnal and annual 

 inequalities of terrestrial magnetism, as 

 deduced from observations made at the 

 Royal Observatory, Greenwich, from 

 1858 to 1863 ; being a continuation of 

 a communication on the diurnal in- 

 equalities from 1811 to 1857, printed 

 in the Philosophical Transactions, 1863. 

 With a note on the luno-diurnal and 

 other lunar inequalities, as deduced from 

 observations extending from 1818 to 

 1863, 163. 



Allylic mustard-oil, action of water and 

 hydrochloric acid on, 273 j of sulphuric 

 acid, 275. 



Amylic alcohols, note on the separation 

 of the isomeric, found by fermentation, 

 308. 



mustard-oil, 70. 



Animal electricity, researches in, 377. 

 Anniversary Meeting, November 30, 1S68, 

 133. 



Annual meeting for election of Fellows, 



June 3, 1869, 453. 

 Aquamarina, on the structure of, 294. 

 Arctic expedition, further particulars of 



the Swedish, 91, 129, 141. 

 Ascension Island, results of magnetical 



observations made at, 397. 

 Auditors, election of, 103. 

 Australia (Central), scientific exploration 



of, 144. 



BaU (J.) admitted, 471. 



Bastian (H. C.) admitted, 103. 



Benzylic mustard-oil, 71. 



Beverly (C. J.), obituary notice of, lxxxvii. 



Bigbsy (J. J.) admitted, 453. 



Bisulphide of phenyl, 64. 



Blanford (H. F.) on the origin of a cy- 

 clone, 472. 



Blood-corpuscle, on the structure of the 

 red, of oviparous vertebrata, 346. 



corpuscles, on the laws and principles 



concerned in the aggregation of, 429. 



VOL, XVTT. 



Boiling liquids, on the action of solid 

 nuclei in liberating vapour from, 240. 



Bombay, on the solar and lunar variations 

 of magnetic declination at, 161. 



, observations of the absolute direc- 

 tion and hitensity of terrestrial mag- 

 netism at, 426. 



observatory, magnetical and meteo- 

 rological instruments for, 144. 



Breen (H.) on the corrections of Bouvarcl's 

 elements of Jupiter and Saturn (Paris, 

 1821), 344. 



Breitenbach meteorite, preliminary notice 

 on the mineral constituents of the, 370. 



Brewster (Sir D.), obituary notice of, lxix, 



British meteorological observations, notice 

 of, 135. 



Broughton (J.) on a certain excretion of 

 carbonic acid by living plants, 408. 



Bruniqucl, description of the cavern of, 

 and its organic contents : Part II. 

 Equine remains, 201. 



Brussels, dip observations at, 283. 



Campbell (Lieut.), report on the eclipse 

 of the sun of August 18, 1868, 120. 



Candidates for election, list of, Mar. 4, 

 1869, 314. 



Candidates selected, list of, May 13, 1869, 

 419. 



Capello (Senhor) on the reappearance of 

 some periods of declination disturbance 

 at Lisbon during two, three, or several 

 days, 238. 



Carbonic acid, on a certain excretion of, 

 by living plants, 408. 



Carpenter (W. B.), preliminary report of 

 dredging operations in the seas to the 

 north of the British Islands, carried on 

 in Her Majesty's steam-vessel 'Light- 

 ning,' by Dr. Carpenter and Dr. Wy- 

 ville Thomson, 168. 



and Brady (H. B.), description of 



ParJceria and Loftusia, two gigantic 

 types of arenaceous foraminifera, 400. 



Catalogue of scientific papers, notice of 

 publication of vol. ii., 135. 



Cavern of Bruniquel, description of : Part 

 II. Equine remains. 201. 



Cavley (A.), note on his memoir "on the 



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