INDEX TO VOLUME IX. 



Abel, Professor, Detonating Agents,G2. 



Experiments, 325, 320. 



Abney's Disi-ovcry, 2SG. 

 Absorption Spectra, 500. 

 Actunian Prize awardt d, 283. 

 Adams, Professor, on Orbit of Meteors,44, 



W. G., on Selenium, 527, 528. 



IMairnetic Disturbance, Aurorte, 



and Earth Currents, 650. 

 African Customs, 391, 395. 

 Ap-icultural Labourer, 500. 

 Allen, Grant, Colour Sense in Insects, 



201. 

 Alliance Machines, 6. 

 American Customs, 392. 

 Ammonia, 51. 

 Annual Meetings (1879), 170, (1880) 



387, (1881) 558. 

 Ants, Habits of, 174. 

 AiJjiunn's Eeed Tonometer, 539. 

 Architectural Design, Logic of, 89. 

 Atoms, 494. 

 Aurorae, 050. 

 Australian Customs, 392. 

 Ayrton, Professor W. E., Mirror of 



Japan, 25. 



Baeyer's Synthesis of Indigo, 580, 585. 



Ball, K. S., Distances of the Stars, 514. 



Bancroft on American Customs, 394. 



Bathurst, Earl, presents Bust of Dr. 

 Wollast(jn, 250. 



Beetroot Vinasscs, 53 



Bell, A. G., presents Pair of Telephones, 

 59. 



on Selenium, 531. 



Bells, 99 ; Music of, 109. 



Ben Doran, 553. 



Bernouilli's Kinetic Theory, 520. 



Bertin's Decomposition Apj)aratus pre- 

 sented, 359. 



Bessel on 01 Cvgui, 514. 



Bidwell, S., Selenium,^ 524. 



Ajtparatus for Telephotography, 



533. 



Bismarck on Lassalle, 4J1. 



Blackie, J. S., Language and Litera- 

 ture of Scottish Highlands, 547. 



Blasting Gelatine, 79; Storage, 84. 



Boiler presented, 37. 



Boulger, K. S., Actonian Prize Essay, 

 283. 

 Vol. IX. (No. 74). 



Bramwell, F. J., '^Thunderer" Gun 



Explosion, 221,309. 

 Brewster on the Mirror of Japan, 27. 

 Brodrick, G. C, Land Systems, 559. 

 Briinnow on 61 Cygni, 510. 

 Buchan, A., Weatiier and Health of 



London, 629. 

 Buchanan, Dugald, 553. 

 Bunsen on Absorption Spectra, 500, 



Candle Power of Machines, 12. 



Carbon Comjiounds, Spectrum of, 074. 



Carpenter, W. B., Land and Sea in 

 Relation to Geological Time, 208. 



Celtic lianguage, 547. 



"Challenger" Researches, 271, 274, 331. 



Chatelier's Mode of Arresting Railway 

 Trains, 310. 



Children's Voltaic Battery, 1. 



Chinese Customs, 405. 



Climate of London, 631. 



Coal, Contents of, 52. 



Cobden Club presents Publications, 544. 



Colonial Organisms, 508. 



Colour Sense in lu.-ects, 201. 



Colouring Matters, 57, 58. 



Composite Portraits, 163. 



" Centre Vapeur " System, 316. 



Cook, Captain, on Australians, 392. 



Cornu, A., Optical Study of the Elas- 

 ticity of Solid Bodies, 191. 



Crookes, VV., INIolecular Physics in 

 High Vacua, 138. 



Cuvier on Discovery. 22. 



Cyanogen Compounds, 259. 



Flame, Spectrum, 679. 



Dampier on American Customs, 392. 



Dana on Land and Sea, 276. 



Darwin's Origin of Species, 302. 



Davy's Battery, 1. 



Death-rate, 632. 



Deep-Sea Dredging, &c., 209, 331. 



De La Rue, Warren, elected Sec, 37. 



presents Bertin's Apparatus, 359. 



Ehctric Discharge with 14,400 



Chloride of Silver Cells, 401. 



Detonating Agents, 62. 



Detonation, 00. 



Dcwar, Profe.-sor, Spectroscopic Inves- 

 tigation, 204. 



High Temperatures, 257. 



3 D 



