Nature, Nov. 2I, 1889] 



INDEX 



IX 



61 ; the Origin of the Platanus Genus, 61 ; Obituary Notice of 

 Heinrich Gustav Reichenbacb, 83 ; Botanical Ga/ette, 92, 

 262 ; the Supplement to Edmond Boissier's Flora Orientalis, 

 edited by R. Buser, W. B. 'Hemsley, 98 ; Presentation of 

 Linnean Society's Gold Medal to M. Alphonse de Candolle, 

 118 ; Cactus Culture for Amateurs, 123 ; Botany of River- 

 Transformation into Marshes, TanfiliefTT, 163 ; Dr. M. C. 

 Cooke's Herbarium of Fungi, 207 ; a Hand-book of Crypto- 

 gamic Botany, Alfred W. Bennett and George Murray, 217 ; 

 Sideroxylon dulcificuvi, D. Morris, 238 ; Congress of the 

 Botanical Society of France, 252 ; at the Polytechnic School 

 of Lisbon, 253 ; Guide to the Botanical Literature of the 

 British Empire, 253 ; the Kew Bulletin for July 18S9, 253 ; 

 Prof. H. Ci. Reichenbach's Collection of Orchids, 253 ; the 

 Journal of Botany, 262 ; the Uses of Plants, G. S. Boulger, 292 ; 

 Systematic Position of the Characeas, Alfred W. Bennett, 298 ; 

 the Spiral Torsion in Wild Teasel, M. de Vries, 312 ; Ponte- 

 dcra azuna, W. C. Sowerby, 327 ; Heat due to Respiration 

 of Fungi, Prof. Arcangeli, 334 ; the Department of Public 

 Gardens and Plantations in Jamaica, 352; Names and 

 Synonyms of British Plants, G. Egerton-Warburton, 316; 

 the Colouring-matter of the Spermoderm in Angiosperms, 

 Louis Claudel, 384 ; the Forest Flora of New Zealand, T. 

 Kirk, 388 ; Botanic Gardens at Tiinidad, 421 ; Prof, de 

 Bary's Collection of Microscopic Slides, 479 ; Report of the 

 British Association Committee on the Disappearance of Native 

 Plants from their Local Habitats, 533 ; Flowers of Calligomwi 

 polygonoides as Article of Food in N.W, India, Use of, Mr. 

 Duthie, 537 ; Report to the British Association on the Botany 

 of the West India Islands, D. Morris, 553 ; the Probable 

 Cause of Frondal Bifu.'^cations of Ferns, Dom B. Rimelin, 

 563; Alfred W. Bennett, on the Antherozoids of Cryptogams, 

 610 ; Prof. F. O. Bower, on the Meristems of Ferns as a 

 Study in Phylogeny, 610 ; Prof Hartog, on the Structure of 

 Saprolegnia, 611 ; Sir John Lubbock, F.R.S., on the Shape 

 of the Oak Leaf and the Leaves of the Guelder Rose, 611 ; 

 Eucalyptus Kinos, J. H. Maiden, 635 ; Trimorphism in 

 Scabiosa siiccisa, Arthur Turner, 643 ; the Uredineae and 

 Ustilaginere, R. Turner, 653 

 Hottomley (J. T., F. R.S.), Expansion with Rise of Temperature 



of Wires under Pulling Stress, 263 

 Bouchon-Brandely (M.), the Natural Oyster-banks of Brittany, 



481 

 Boulay (Henri), Statue to, 480 



Boulder Clay, Bored Stones in, G. W. Lamplugh, 297 

 Boulder Clay Erratic, Saxicava Borings and Valves in a, T. 



Mellard Reade, 246 

 Boulenger (G, A.), Catalogue of the Chelonians, Rhyncho- 

 cephalians, and Crocodiles in the British Museum (Natural 

 History, 5 

 Boulger (G. S.), the Uses of Plants, 292 

 Bower (Prof. F. 0.), on the Meristems of Ferns as a Study in 



Phylogeny, 610 

 Bowlker (C. A. C), Atmospheric Electricity, 55 

 Boys (C. v., F.R.S.) : Quartz as an Insulator, 71 ; Quartz 

 Fibres, 247 ; Portable Cavendish Apparatus for demonstrating 

 the Attraction of Gravitation, 65 

 Brachistochrones and Ray-paths, on the Relation between. Prof. 



Everett, F.R.S., 584 

 Bradshaw (J. G. ), a Course of Easy Arithmetical Examples for 



Beginners, 293 

 Brady (Dr. G. S.) and Rev. A. M, Norman, Monograph of the 

 Marine and Fresh-water Ostracoda of the North Atlantic and 

 of North- Western Europe, 364 

 Brauner (Dr. B.), Experimental Researches on the Periodic 



Law, 214 

 Brauner (Dr.), Tellurium, 284 

 Bremen Arctic Expedition, Return of, 539 

 Brest, Earthquake at, 162 

 Bride, the Theorem of the, 320; Prof. Geo. J. Allman, F.R.S., 



299 

 Bridge : the Sukkur, Opening of, 13 ; the Channel, Schneider 



and Hersent, 536, 560 

 Brinton (Dr. D. G.), the Ta Ki, the Svastika, and the Cross in 



America, 373 

 Bristow (Henry William, F.R.S.), Death of, 178; Obituary 



Notice of, 206 

 Britain, Mr. Ussher on the Devonian Rocks of, 608 

 British Actiniae, Revision of the. Prof. A. C. Haddon, 390 



British Association :— Dinner to the President-Elect, 

 106 ; Meeting at Newcastleon-Tyne, Preliminary Ar- 

 rangements, 329, 349, 373, 462 ; Inaugural Address 

 by Prof. W. H. Flower, F.R.S., President, 463; Social 

 Arrangements, 485 ; the Secretaryship, 485 ; Places of 

 Meeting for 1890, 1891, 1892, 485 ; Attendance at, 485 ; 

 Grants, 485 ; Second Report of the Committee Appointed 

 for Collecting Information as to the Disappearance of Native 

 Plants from their Local Habitats, Prof Hillhouse, 533 ; 

 Report of the Committee appointed for the Purpose of Co- 

 operating with the Scottish Meteorological Society iu Making 

 Meteorological Observations on Ben Nevis, A. Buchan, 

 535 ; Prof. Sir. William Thom.son, F. U.S., on Boscovich's 

 Theory, 545; Eighteenth Report of the Committee on the 

 Rate of Increase of Underground Temperature downwards 

 in Dry Land and under Water, Prof. Everett, 551 ; Report 

 of the Committee for Investigating the Best Methods of 

 Ascertaining and Measuring Variations in the Value of the 

 Monetary Standards, Prof. F. V. Edgeworth, 553 ; Second 

 Report of the Committee for Reporting on our Knowledge 

 of the Zoology and Botany of the West India Islands, and for 

 Taking Steps to Investigate Ascertained Utticiencies in the 

 Fauna and Flora, D. Morris, 553 ; Fifth Report of the 

 Committee for Considering the Best Means cf Comparing 

 and Reducing Magnetic Observations, Pro/. W. Grylls 

 Adams, F.R.S., 554; Fourth Report of the Committee 

 Appointed for the Purpose of Promoting Tidal Observations 

 in Canada, Prof. A. Johnson, 554; Report of the Committee 

 on theTeaching of Science in Elementary Schools, Prof. H. E. 

 Armstrong, F'.R.S., 554; Report of the Committee on Electri- 

 cal Standards, R. T. Glazebrook, F. R..S., 555 ; Report on the 

 Present State of our Knowledge in Electrolysis and Klectro- 

 Che-mistry, W. N. Shaw, 555 ; Report of the Committee on 

 the Observations on the Migration of Birds made at Light- 

 houses and Light-vessels, John Cordeaux, 556 ; Report of 

 the Committee on the Seasonal Variations of Temperature 

 in Lakes, Rivers, and Estuaries, in the United Kingdom, 

 Dr. H. R. Mills, 556 ; Report of the Committee on Solar 

 Radiation, 556 ; Report of the Committee for the Investiga- 

 tion of the Natural History of the Friendly Islands and 

 other Islands in the Pacific, S. F. Harmer, 556 ; Physical 

 Papers at the, 583 ; Section Work at the. Prof. Oliver J. 

 Lodge, F.R.S., 593 

 Section A (Afatheriiatics and Physics) — Opening Address by 

 Captain W. de W. Abney, C.B., F.R.S., President of the 

 Section, 469 ; Prof. Sir William Thomson, F. R.S., on 

 Boscovich's Theory, 545 ; Prof. A. W. Riicker, F. R.S., on 

 Cometic Nebula?, 583 ; Prof. C. Piazzi Smyth, on Re- 

 examination of the Spectra of Twenty-three Gas- Vacuum 

 End-on Tubes after Six to Ten Years of Existence and Use, 



584 ; Lord Rayleigh, SecT<.S., on the Ttne^ of Bells, 584 ; 

 Captain Abney, F.R.S., on the Quantity of Deposit of 

 Silver Produced by the Development on a Photographic 

 Plate in Terms of the Intensity of Light Acting, 584 ; Lord 

 Rayleigh, Sec. R.S., on Pin-hole Photography, 584; Prof. O. 

 J. Lodge, F.R.S, and R. T. Glazebrook, F.RS., on the 

 Determination of z^by Means of Electric O scillations, 584 ; 

 Prof. A. W. Riicker, F.R.S., on the Inst uments Used in 

 the Recent Magnetic Survey of France, 584 ; Prof. J. A. 

 Ewing, F. K.S., on the Magnetic Viscosity of Iron, 584 ; 

 Prof. Everett, F.R.S., on the Relation between Brachisto- 

 chrones and Ray-paths, 584; Prof. J. A. Ewing, F.R.S., 

 on Hysteresis in the Relation of Strain to Stress, 584 ; 

 Prof. Henry Stroud, on the E.M.F. Produced by an Abrupt 

 Variation of Temperature at the Point of Contact of Two 

 Portions of the same Metal, 585; Prof. McLeod, F.R.S., 

 on the Black-bulb Thermometer in vacuo, 585 ; Sir W. 

 Thomson, F.R.S., on Electrification of Air by Combustion, 



585 ; Prof. C. Michie Smith, on Atmospheric Electricity 

 and the Use of Sir W. Thomson's Portable Electrometer, 

 585 ; A. W. Clayden, on Dark Flashes of Lightning, 585 ; 

 Prof. Cleveland Abbe, on the Determination of the Amount 

 of Rainfall, 585 ; Prof. C. Piazzi Smyth, on Hygrometry 

 in the Meteorological Jonrnal, 585 ; F. T. Trouton, on 

 some Experiments on Radiation with Prof. Hertz's 

 Mirrors, 585; Profs. A. W. Riicker, F.R.S., and 

 T. E. Ihorpe, F.R.S., on the Relation between the 

 Geological Constitution and the Magnetic Slate of the 

 United Kingdom, 5S5 ; Prof. Arthur Schuster, F.R.S., on 



