Nature, 

 December 13, 1900 



Index 



Semmola (Prof. E.), Variations with Altitude of Air Potential, 



Senderens (J. B.), Addition of Hydrogen to Acetylene in the 

 Presence of Copper, 168 ; Addition of Hydrogen to Acetyl- 

 ene in Presence of Reduced Iron and Cobalt, 191 ; Addition 

 of Hydrogen to Acetylene and Ethylene in Presence of 

 Finely-divided Platinum, 264 ; Action of Reduced Nickel on 

 Acetylene, 312 ; Action of Finely-divided Metals on Acetyl- 

 ene and Ethylene, 336 ; Addition of Hydrogen jto Ethylene 

 in Presence of Reduced Metals, 240 



Senior (Edgar), a Handbook of Photography in Colours, 434 



Sensation, the Relation of Stimulus to, Prof. C. Lloyd Morgan, 

 F.R.S., 278 



Serotherapy : a Possible Preventive of African Horse-sickness, 

 Dr. G. C. Purvis, 83 ; Standardisation of Anti-venomous 

 Serum, W. Myers, 215 



Seurat (L. G.), Morphology of Respiratory Apparatus of Larva 

 of Britchus ornatus, 639 



Severn Bore, the, Vaughan Cornish, 126 



Sewage : the Bacterial Treatment of Sewage, Dr. Frank Clowes 

 and Dr. Houston, 128 ; on Bradford Sewage and its Treat- 

 ment, F, W. Richardson, 567 ; W. Leach, 568 ; W. B. 

 Bottomley, 568 ; on the Relation of Ulva latissima to the 

 Pollution of Sea-water by Sewage, Prof. Letts, J. Hawthorn, 

 611 



Seward (Mr.), on the Climatic and other Physical Conditions 

 under which Coal was formed, 610 



Seward (Prof A. C, F.R.S. ), on the Structure and Affinities 

 of Dipteris conjiigata, 612 



Sharpe (Dr. Benjamin F. ), a New Instrument to Measure and 

 Record Sounds, 80 



Shaw (P. E. ), Electric Micrometer, 67 



Shaw (W. N., F.R.S.), the Daily Weather Report of the 

 Meteorological Office, 300 



Shenstone (W. A., F.R.S.), Working Silica in the Oxy-gas 

 Blowpipe Flame, 20 



Sherrington (Prof C. S., F.R.S.), Experimentation on Emo- 

 tion, 328 



Shetland Isles, a Vertebrate Fauna of the, A. H. Evans and 

 T. E. Buckley, 75 



Shimizu (S. ), a String Alternator, 286 



Ship-building, the Use of Steel in, B. Martell, 90 



Ships, the steadying of. Prof. G. H. Bryan, F.R.S., 186 



Shooting in Schools, Percussion Caps for. Sir Lauder Brunton, 

 F.R.S., 54 



Shove (Miss R. F.), on the Structure of the Stem of Angiopteris 

 evecta, 612 



Shufeldt (Dr. R. W.), Psychology of Fishes, 63 



Siam, Surveying and Exploring in, James McCarthy, 571 



Siboga, the Cruise and Deep-sea Exploration of the, in the 

 Indian Archipelago, 327 



Siderostat and Coelostat, Orientation of the Field of View of 

 the, A. Fowler, 428 



Sidgwick (Prof Henry), Death of, 456 ; Obituary Notice of, 

 496 



Silica in the Oxy-gas Blowpipe Flame, W. A. Shenstone, F.R. S., 

 and H. G. Lacell, 20 



Silk, Spider, Manufacture in Madagascar, M. Nogue, 17 



Silver, Metallurgy of Lead and, Henry F. Collins, 194 



Simmons (A. T.), Elementary Physics and Chemistry, 620 



Simmonds (C), Huxley and his Work, 495 



Simon (L. J.), New Pyrogenous Product from Tartaric Acid, 

 616 ; Isopyrotritaric Acid, 639 



Skeat (W. W.), Malay Magic : being an Introduction to the 

 Folklore and Popular Religion of the Malay Peninsula, 

 145 ; Report of the Committee of the British Associa- 

 tion on the Natural History and Ethnography of the Malay 

 Peninsula, 636 



Skeleton, Human, on the Developmental Changes in the, from 

 the Point of View of Anthropology, Dr. David Waterson, 

 633 



Skeletons, Ancient Egyptian, on Perforate Humeri from, Prof. 

 A. Macalister, 633 



Skin Marks, on Permanent Artificial, H. Ling Roth, 634 



Sladen (Walter Percy), Death of, 179; Obituary Notice of, 256 



Smith (Dr. C. A.), the Clays of Alabama, 274 



Smith (G. F. Herbert), Method for Determining Refractive 

 Indices of Minerals of Low Symmetry, 239 

 lith (H. G.), Amyl Ester of Eudesmic Acid in Eucalyptus 

 Oils, 384 



Smith (R. G.), Double Staining of Spores and Bacilli, 640 



Smith (William G.), Recent Investigations on Rust of Wheat, 

 352 



Smithells (Prof. Arthur), Introduction to Physical Chemistry, 

 James Walker, 76 



Smithsonian Expedition, the Total Solar Eclipse as observed by 

 the, 246 



Smyth (the late Prof. Piazzi), some Notes on his Work in 

 Spectroscopy, Prof. A. S. Herschel, F.R.S. , 161 



Smoke Cloud of the North of England and its Influence on 

 Plants, the Great, Albert Wilson, 61 1 



"Snake-stone," Plotosus canhis a.nA the, D. Hervey, 79 



Snake-stone, the, E. H. L. Schwartz, 302 



Snake-venom, Captain R. H, Elliot, 180; Standardisation 

 of Anti-venomous Serum, W. Myers, 215; the South Indian 

 Snake-men, Captain R. H. Elliott, 324 



Snape (H. L.), Racemic and Optically Active Forms of Iso- 

 amarine, 143 



Snelgrove (Edward), Object Lessons in Botany from Forest, 

 Field, Wayside, and Garden, 53 



Snow-drifts on Ingleborough in July, Prof T. Mckenny 

 Hughes, F.R.S., 389 ; Prof. T. G. Bonney, F.R.S., 412 



Snyder (V.), Invariant Scrolls In Collineations which leave a 

 Group of Five Points Invariant, 381 



Soames (Laura), Introduction to English, French, and German 

 Phonetics, with Reading Lessons and Exercises, 220 



Sociology : the Races of Europe, a Sociological Study, William 

 Z. Ripley, Prof. A. C. Haddon, F.R.S., 27 



Solander (Dr. Daniel), Illustrations of the Botany of Captain 

 Cook's Voyage Round the World in H.M.S. Endeavour, 

 in 1768-71, 547 



Solar Parallax, Determination of, 377 



Solar Radiation, Report of the British Association Committee 

 on Solar P.adiation on Experiments conducted by Prof. 

 Callendar on the Modified Copper-cube Actinometer, 562 



Solidification of Alloys, the, Fred. T. Trouton, F.R.S., 523 



SoUas (Prof. W. J., F.R.S.), Opening Address in Section C of 

 the British Association, 481 ; on a Concealed Coal Field 

 Beneath the London Basin, 587 



Solution Theory Applied to Molten Iron and Steel, John 

 Parry, 128 



Sound Waves, the Photography of. Prof. R. W. Wood, 342 



Sounds, a New Instrument to Measure and Record Sounds, Dr. 

 Benjamin F. Sharpe, 80 



Sources and Properties of Becquerel Rays, Prof. G. H. Bryan^ 

 F.R.S., 151 



South African Philosophical Society, 216, 264, 464 



Space, Pseudospherical, Dynamics of. Prof. D. de Francesco, 18 



Species, the Subordination of the Individual to the Welfare of 

 the, 593 



Spectrum Analysis, Comparison of Stellar with Laboratory 

 Spectra, Sir Norman Lockyer, 23 ; Spectrum of )3 Lyrse 

 and 7] Aquilce, O. Belopolsky, 70 ; Temperature Control of 

 Spectrograph, Prof W. W. Campbell, 137 ; some Notes on 

 the late Prof Piazzi Smyth's Work in Spectroscopy, Prof. 

 A. S. Herschel, F.R.S., 161; the Band Spectrum of Aluminium, 

 G. A. Hemsalech, 335 ; Spectrum of Radium, Eug. Demar- 

 9^y> 336 ; Spectrum of Radium, C. Runge, 568 ; Influence 

 of Slight Impurities on Argon and Helium Spectra, P. 

 Lewis, 381 ; Fluorescence and Phosphoresence in Electric 

 Discharge through Nitrogen, P. Lewis, 381 ; the New Spec- 

 trographs for the Potsdam Great Refractor, Prof. C. H. 

 Vogel, 459 ; Dr. S. P. Langley's Chart of the Infra Red 

 Spectrum from 07 to 5*3 /t* obtained by the Bolometric 

 Method, 562 ; H. Ramage, on a Method of Investigating 

 Correspondence between Spectra, 563 ; Spectra of Hydrogen 

 and Aqueous Vapour, J. Trowbridge, 568 ; Spectroscopic 

 Examination of Colour Produced by Simultaneous Contrast, 

 G. J. Burch, 615 



Spencer (Herbert), Genesis of the Vertebrate Column, 620 



Speyers (C. L.), Boiling Point Curves, 92 



Spider-silk Manufacture in Madagascar, M. Nogue, 17 



Spitta (Dr. Edmund J.), Photo-micrography, 4 



Sport and Travel, Notes on, George Henry Kingsley, 5 



Sporting Tour, Count Scheibler's, 244 



Stability of a Swarm of Meteorites and of a Planet and Satellite, 

 the. Prof. A. Gray, F.R.S., 582 



Staffordshire, North, on Rapid Changes in the Thickness and 

 Character of the Coal Measures of, W. (iibson, 587 



Standards for Faint Stellar Magnitudes, 398 



