Nature, 

 June 13, 1901. 



Index 



XXXV 



Siedlecki (Michel), Relations of the Gregarians and Intestinal 



Epithelium, 363 

 Sight, the Optics of Acuteness of, Dr. A. S. Percival, 82 ; 



F. Twyman, 157 

 Silica, Expansion of, Prof. Callendar, 529 

 Simmons (A. T. ), Science Teachers in Conference, 289; 

 Technical Education at Manchester, 336 ; Science in Techni- 

 cal and Preparatory Schools, 407 ; a Manual of Elementary 

 Science, 513 

 Simon (L. J.), Stereochemistry of Nitrogen, 24 

 Skeat(W. W.), Malay Metal Work, 434 

 Skinner (Mr.), Minute Structure of Surface Ice, 191; 

 Skull-trephining in New Britain, &c., Rev. J. A. Crump, 554 

 Slavs, Ethnic Affinities of the, Herr Jaborowski, 353 

 Smelting Process, Captain Hassano's Electrical, 330 

 Smith (David Eugene), the Teaching of Elementary Mathe- 

 matics, 367 

 Smith (G. F. H.), Calaverite Crystals from Colorado, 554 

 Smith (H. G. ), Constituent of Peppermint Odour in Euca- 

 lyptus Oil, 172 ; Geraniol in Eucalyptus Oil, 267 ; New 

 Aromatic Aldehyde in Eucalyptus Oils, 579 

 Smith (R. G.), the "Clouding" of White Wine, 220; Vibrio 



bresmiae. Pathogenic Organism of Fish, ICX3 

 Smith (W. L.), Shades for Electric Lighting, 282 

 Smithells (Prof. A.), Elementary Studies in Chemistry, Joseph 



Torrey, 606 

 Smythe (J. A.), Bases in Scottish Shale Oil, 123 

 Snakes : Snake Plague in South Wales, G. Leighton, 330 ; 

 Dasypeltis and the Egested Egg-shell, Prof. G. B. Howes, 

 F.R.S., 326; the Crocodilians, Lizards and Snakes of North 

 America, E. D. Cope, 415 ; Snakes and other Wild Animals 

 in India, Deaths from, 305 

 Snow Crystals, Wm. Gee, 420 ; C. J. Woodward, 441 

 Snow- waves, V. Cornish, 521 



Snyder (William H.), One Thousand Problems in Physics, 393 

 Social Life of the Hebrews, the, Rev. Edward Day, 559 

 Social and Scientific Studies, Dr. Alfred Russel Wallace, 174 

 Solar Calorimeter, J. Y. Buchanan, 195 



Solar Eclipse, the Total, of May 17-18, Dr. J. J. A. MuUer, 347 

 Solar Motor, the Californian, 572 

 Sollas (I. B. J.), the Rhcetic Plant Naiadita, 411 

 Somerville (Prof. Wm., F. R.S.), Agricultural Demonstration 



and Experiment, 84 

 Soot, the Mineral Constituents of Dust and, from Various 



Sources, Prof. W. N. Hartley, F.R.S. , Hugh Ramage, 552 

 Sound : a Text-book of Physics. Sound, J. H. Poynting, 

 F.R.S., J. J. Thomson, F.R.S., 26 ; Audibility of the Sound 

 of Firing on February i, 355, 372, 420 ; Sir W. J. Herschel, 

 395; Robert'B. Hay ward, F.R.S., 538; Arthur R. Hinks, 

 441 

 Sounding the Ocean of Air, A. Lawrence Rotch, 55 

 South African Philosophical Society, 124, 220, 532 

 Southerden (F.), the Selborne Yew-tree, 491 

 Southwell (T.), Notes on Seal and Whale Fishery, 524 

 Sowter (R. J.), Astigmatic Lenses, 74 

 Space Difference, the Smallest Visible Lateral, Prof. G. M. 



Stratton, 12 

 Spain : Spanish Observations of the Eclipse of May 28, Seiior 

 Iniguez, 188; Spain and Greenwich Time, 240; an Earth- 

 quake on February 10, Prof. Augusto Arcimis, 396 

 Species, the Collection of Material for the Study of, S. Pace, 490 

 Spectrum Analysis : Our Stellar System, Sir Norman Lockyer, 

 K.C.B., F.R.S., 29; Application of Interference Method to 

 Measurement of Wave-lengths in Solar Spectrum, A. Perot 

 and Ch. Fabry, 51 ; Observations of the Infra-red Spectrum 

 ofthe Solar Corona, M. Deslandres, 67 ; Recent Studies of 

 the Infra-red Region of the Solar Spectrum, Prof. S. P. 

 Langley, 68 ; Latest Results of Study of Infra-red part of 

 Solar Spectrum, S. P. Langley, 75 ; J. Janssen, 75 ; on Solar 

 Changes of Temperature and Variations in Rainfall in the 

 Region surrounding the Indian Ocean, Sir Norman Lockyer, 

 K.C.B., F.R.S., Dr. W. J. S. Lockyer, 107, 128 ; Difference 

 in Spectra of Metals when Light-producing Arc is Surrounded 

 by Air or Hydrogen, Prof. H. Crew, 114 ; the Anomalous Dis- 

 persion of Carbon, Prof. R. W. Wood, 123 ; Absorption 

 Spectrum of Triphenylmethane Dyes in Aqueous Solution, 

 P. Lemoult, 124 : Argon and its Companions, Prof. William 

 Ramsey, F.R.S., Dr. Morris W. Travers, 164; Can Spec- 

 trum Analysis Furnish us with Precise Information as to the 

 Petrography of the Moon? Dr. W. J. Knight, 180; on the 



Spectrum of the more Volatile Gasesof Atmospheric Air, which 

 are not condensed at the Temperature of Liquid Hydrogen, 

 Prof. G. D. Liveing, F.R.S., Prof. J. Dewar, F.R.S., 189; 

 the Anomalous Dispersion of Cyanin, 210; Visible Spectrum 

 of Nova Aquilw, Prof. W. W. Campbell, 260 ; the Ab- 

 sorption Spectra of Saline Solutions, Prof. W. N. Hartley, 

 313 ; Handbuch der Spectroscooie, H. Kayser, Prof. Arthur 

 Schuster, F.R.S., 317 ; a Mica Echelon Grating, Prof. R. W. 

 Wood, 386 ; the Fraunhofer Lines in the Spectrum of the 

 Corona, A. Fowler, 394 ; Cyanine Prisnis, Prof. R. W. Wood, 

 433 ; Spectra of Flames in Open-hearth and Basic Bessemer 

 Processes, W. N. Hartley, F.R.S. , and Hugh Ramage, 481 ; 

 the Spectrum of Nova Persei, 482 ; Prof. H. C. Vogel, 575, 

 620 ; Reduction of Photographs of Stellar Spectra, 620 



Spencer (Prof. B. , F.R.S.), IVynyardia Bassiana, Fossil Mar- 

 supial from Tasmania, 146 



Spermatophore, Note upon a New Form of, in an Earth-worm, 

 Frank E. Beddard, F.R.S., 515 



Speyers (C. L.), Heat of Solution of Resorcinol in Ethyl 

 Alcohol, 266 



Spider, Adaption of Instinct in a Trap-door, R. I. Pocock, 466 



Spielmann (Percy E.), a Tree Torn by Lightning, 466 



Spines, Human, Description of the. Showing Numerical Varia- 

 tion in the Warren Museum of the Harvard Medical School, 

 Dr. T. Dwight, 512 



Spirals in Horns, Direction of, George Wherrj', 252, 348 ; Dr. 

 W. T. Blanford, F.R.S., 298 



Spirits, Potable, Injurious Constituents in, 491 



Sport and Travel, East and West, F. C. Selous, 125 



Sprankling (C. H. G. ), Dissociation Constants of Alkyl-substi- 

 tuted Succinic Acids, 75 ; Influence of Methyl Group on 

 Ring Formation, 291 



Spurr (J. E.), Quartz- Muscovite Rock from Belmont, Nevada, 

 169 



Stability of a Swarm of Meteorites, the, Prof. Andrew Gray, 

 F.R.S., 250 



Stadic Tables, Elevation and, A. P. Davis, 514 



Standen (W. E.), Sepia koettUtzi, 196 



Standfuss (Dr. Max), Lepidoptera not Atavistic, 65 



Stanger (W. H.), the Rotatory Cement Manufacturing Process, 

 449 



Starlings, a Nest of Young, in Winter, 252 



Stars: our Stellar System, Sir Norman Lockyer, K.C.B., 

 F.R.S., 29 ; New Variable Stars, 39, 115, 260, 525 ; R. T. A. 

 Innes, 309 ; New Variable Star in Lyra, A. Stanley Williams, 

 92 ; New Variable in Cygnus, A. Stanley Williams, 188 ; 

 New Variable Star i 1901 (Cygni), A. Stanley Williams, 

 426 ; New Variable Star 2 1901 (Cygni), Dr. T. D. Ander- 

 son, 502 ; Catalogue of New Variable Stars, 452 ; Catalogue 

 of Southern Variable Stars, Alexander W. Roberts, 548 ; 

 New Variable Star 70 (1901) Ursa Majoris, 620; Co-opera- 

 tion in Observing Variable Stars, Prof. E. C. Pickering, 477 ; 

 Observations of Circumpolar Variable Stars, 502 ; Abnormal 

 Stars in Clusters, Prof. E. E. Barnard, 68 ; Visual Observa- 

 tion of Capella (a Aurigce), Prof. W. J. Hussey, 92 ; Cata- 

 logue of One Hundred New Double Stars, Prof. W, J. 

 Hussey, 141 ; Double Star Measures, 286 ; Dr. Doberck, 

 383 ; Catalogue of Double Stars, 596 ; Heliometer Measures 

 of h and x Persei, Prof. Schur, 240 ; Catalogue of Stars, 

 (Hamburg), 240 ; Visible Spectrum of Nova Aquilse, Prof. 

 W. W. Campbell, 260 ; Photographic Catalogue of Polar 

 Stars, 355 ; Catalogue of Principal Stars in Coma Berenices 

 Cluster, 383 ; Nova Persei, 420 ; Sir Norman Lockyer, 

 K.C.B., F.R.S., 441, 540; Prof Edward C. Pickering, 

 497 ; Prof. H. C. Vogel, 502 ; C. Easton, 540 ; Rutherfurd 

 Measures of Pleiades, Harold Jacoby, 548 ; Reduction of 

 Photographs of Stellar Spectra, 620 



Statecraft, Darwinism and, G. P. Mudge, 561 



Statecraft, Darwinism and. National Life from the Standpoint 

 of Science, Prof. ICarl Pearson, F.R.S., Prof. E. Ray 

 Lankester, F.R.S., Prof. John Perry, F.R.S., Supp. iii. 



Static Discharge,' Photography of the. Dr. Hugh Walsham, 



180 

 Stationary Motions, T. Levi-Civita, 573 



Statistics : the Census of Cuba, Lt.-Col. J. P. Sanger, Messrs. 

 H. Gannett and W. P. Willcox, 162 ; Distribution of Popula- 

 tion in England and Wales, Thomas Welton, 450 ; the Mining 

 Statistics of the World, Bennett H. Brough, 551 

 Steel (Richard), Imitation or the Mimetic Force in Nature and 

 Human Nature, 513 



