638 



INDEX. 



Carpenter (W. B.) on the structure, phy- 

 siology, and development of Antedon 

 rosaceus, 211, 451. 



' Challenger,' preliminary report to Prof. 

 W. Thomson on chemical and geolo- 

 gical work done on board H.M.S., 388, 

 593. 



, preliminary report to Prof. W. 



Thomson on Crustacea observed during 

 the cruise of H.M.S., in the Southern 

 Sea, 387, 585. 



, preliminary report to Prof. W. 



Thomson on observations made during 

 the earlier part of the voyage of H.M.S., 

 387,569. 



, preliminary report to Prof. W. 



Thomson on the true corals dredged by 

 H.M.S., in deep water, between Dec. 30, 

 1870, and Aug. 31, 1875, 387, 544. 



, preliminary reports to Prof. W. 



Thomson on work done on board the, 

 387, 471. 



, report to the Hydrographer of the 



Admiralty on the cruise of H.M.S., from 

 June to August 1875, 33. 



, report to the Hydrographer of the 



Admiralty on the voyage of the, from 

 the Falkland Islands to Monte Video, 

 and a position in lat. 32° 24' S., long. 

 13° 5' W., 623. 



Chemical and geological work, preliminary 

 report on, done on board H.M.S. ' Chal- 

 lenger,' 388, 593. 



Cirripedia, on the development of Lepas 

 fascicularis and the "Archizoea " of, 129. 



Colliery explosions, on the influence of 

 coal-dust in, 354. 



Collodion plate, on reversed photographs 

 of the solar spectrum obtained on a, 

 186. 



Conducting-wires and bar-magnets, on 

 some electro-magnetic rotations of, on 

 their axes, 121. 



Copley medal awarded to August Wilhelm 

 Hofmann, 89. 



Corals, on the structure and relations of 

 certain, 59. 



, on the true, dredged by H.M.S. 



' Challenger,' 387, 544. 



Corti, on the organ of, in mammals, 346. 



Council, list of, 47, 94. 



Crookes (W.), royal medal awarded to, 

 91. 



, on repulsion resulting from radia- 

 tion : Part III., 276 ; Part IV., 279. 



on the movement of the glass case 



of a radiometer, 409. 



Crustacea, preliminary report on, observed 

 during the cruise of H.M.S. ' Challen- 

 ger ' in the Southern Sea, 387, 585. 



Crustacean embryo, on the development 

 of the, and the variations of form exhi- 

 bited in the larvse of 38 genera of Podo- 

 phthalmia, 375. 



Currents, on instruments for recording 

 the direction and velocity of, and 

 the temperature of the water at diffe- 

 rent depths in the ocean, 321. 



Curves and surfaces, on the forms of equi- 

 potential, and on lines of flow, 1. 



Decapods, on the development of some 

 pelagic, 132. 



Decease of R. von Willemoes-Suhm, notice 

 of the, 33. 



Declination, magnetic dip, and horizontal 

 force, results of the monthly observa- 

 tions of, made at the Kew Observatory 

 from April 1869 to March 1875 inclu- 

 sive, 232. 



De la Rive (A. A.), obituary notice of, 

 xxxvii. 



De La Rue (W.) and Miiller (H. W.) on 

 the length of the spark from a battery 

 of 600, 1200, 1800, and 2400 rod-chlo- 

 ride-of-silver cells, and some phenomena 

 attending the discharge of 5640 cells, 

 167. 



Delaunay (C. E.), obituary notice of, vii. 



Depth of the sea, on determining the, 

 without the use of the sounding-line, 

 and on an attraction-meter, 317. 



Differential equations of the first order, 

 on the theory of the solution of a sys- 

 tem of simultaneous partial, 337. 



Direct-vision compound prism presented 

 to the Society by Mr. Cassiot, 33. 



Disraeli (Rt. Hon. B.), elected, 276. 



Dog, contributions to the minute anatomy 

 of the thyroid gland of the, 240. 



Donation fund, account of grants from the, 

 102. 



Earth's magnetism, on the variations of 

 the daily mean horizontal force of the, 

 produced by the sun's rotation and the 

 moon's synodical_and tropical revolu- 

 tions, 231. 



Elasmobranch fishes, on the development 

 of the spinal nerves in, 135. 



Electric sparks, on the length of, 167. 



Electrolysis, experimental contributions 

 to the theory of, 308. 



Electro-magnetic rotation, an experiment 

 on, 403. _ 



, rotations, on some, of bar-magnets 



and conducting-wires on their axes, 

 121. 



Electromotive force, on certain cases of, 

 sustained by the action of electrolytes 

 on electrolytes, 183. 



Electro-positive and electro-negative me- 

 tals, on the replacement of, in a voltaic 

 cell, 47. 



Elementary bodies, on the compound 

 nature of the line-spectra of, 352. 



Ellery (R. L. J.), admitted, 32. 



Embryo, on the development of the crus- 



