INDEX TO VOL. XVI. 



Abel (F.) on the stability of gun-cot- 

 ton, 172. 



Acetone, on some new derivatives of, 364. 



Air, resistance of, to the motion of elon- 

 gated projectiles having variously form- 

 ed heads, 261. 



, resistance of, to rifled projectiles, 263. 



Airy (G. B.), comparison of magnetic dis- 

 turbances recorded by the self-register- 

 ing magnetometers at the Royal Obser- 

 vatory, G-reenwich, with magnetic dis- 

 turbances deduced from the correspond- 

 ing terrestrial galvanic currents record- 

 ed by the self-registering galvanometers 

 of the Eoyal Observatory, 249. 



Alcohol and water, on the specific heat of 

 mixtures of, 337. 



Ammonia, on oxalurate of, as a constitu- 

 ent of human urine, 140. 



Amyl-isopropyl, 37. 



Ansesthetics, effect of, 470. 



Andrews (T.) on the identity of the body 

 in the atmosphere which decomposes 

 iodide of potassium with ozone, 63. 



Aneroid barometers, account of certain 

 experiments on, 472. 



Animal mechanics, on some elementary 

 principles in, 19. 



Anniversary Meeting, November 30, 1867, 

 163. 



AnnualMeeting for the election of Fellows, 

 June 6, 1867, 1 ; June 4, 1868, 419. 



Arc of meridian, extension and verifica- 

 tion of La Caille's, at Cape of Grood 

 Hope, 171. 



Arch(Eopteryx litTiograpMca^ remarks 

 upon, 243. 



Astronomical observations in India, report 

 of Committee on Mr. Hennessey's letter 

 concerning, 284. 



Auditors, election of, 155. 



Australia, central, scientific exploration of, 

 347. 



Babington (B. Gr.), obituary notice of, i. 



Bache (A. D.), obituary notice of, Ixiv. 



Baer (K. E. von), Copley medal awarded 

 to, 174. 



Baird (Dr. W.) admitted, 1. 



Bakerian lecture, December 19, 1867, re- 

 searches on vanadium (I.), 220. 



Balcpnoptera rostrata, on the anatomy of, 

 64. 



Barometer, comparison of, with spectro- 

 scope, 9. 



Bashforth (F.) on the resistance of the air 

 to the motion of elongated projectiles 

 having variously formed heads, 261. 



Bat's wing, microscopical characters of 

 the rhythmically contractile muscular 

 coat of the veins of the, 342. 



Bile, chemical natm-e, composition, com- 

 binations, and metamorphoses of co- 

 louring-matters of, 215. 



Bilirubine and its compounds, 215. 



Biliverdine and its compounds, 217. 



Bischoff (T. L. W.) elected foreign mem- 

 ber, 311. 



Blood, on the action of nitrites on, 339. 



Body, variations in weight of, on diet of 

 nitrogen, 47. 



Boiling-point and chemical structure, on 

 the relation between, 367. 



Bombay, new self-recordmg instruments 

 for magnetical observatory at, 170. 



, on the tides of, 414. 



Bones of the human face, formation and 

 early growth of, 447. 



Brain, contributions towards determining 

 the weight of the, in different races of 

 man, 236. 



Brande (W. T.), obituary notice of, ii. 



Bray ley (E. W.), inferences and sugges- 

 tions in cosmical and geological philo- 

 sophy (Second series), 72. 



Brinton (W.), obituary notice of, vi. 



Broadbent (W. H.), an attempt to apply 

 chemical principles in explanation of the 

 action of poisons, 465, 



Brorsen's comet, on the spectrum of, 

 386. 



Broun (J. A.), note on the lunar-diurnal 

 variation of magnetic declination, 59. 



Calcium, refraction- equivalent of, 444. 

 California, notes on the chemical geology 



of the gold-fields of, 294. 

 Callender (Q-. W.), observations on the 



anatomy of the thyroid body in man, 



24, 183. 



, the formation and early growth of 



the bones of the human face, 447. 



