XXll 



Index 



C Nature, 

 April II, 1912 



Astronomy (conXlnued) : 



Stars, Helium, Classication, Dr. Ludendorff, W. E. 

 Rolston, 424 



Stars, \a7'xable : Permanent Designations, 259 ; a Pecu- 

 liar Variable, 232848 Z Andromedse, 327 ; a New 

 Variable or Nova, 87, 191 1, Persei, C. R. D'Esterre, 

 389 ; Hen- Mietlic, 5(15 



Stellar Parallax : Parallax of the Double Star Kriiger 60, 

 Dr. Lau, 327 ; Hypothetical Parallaxes of the Brighter 

 Stars of Type A, H. C. Plummer, 402 ; Stellar 

 Parallaxes, A. S. Flint, 526 ; Parallax and Proper 

 Motion of Mira, S. Kostinsky, 526 



Stellar Spectra : Distribution of Stars of Different Spec- 

 tral Types, Dr. K. G. Hagstrom, 226 ; Stars having 

 Peculiar Spectra, Mrs. Fleming, 226 ; Stellar Spectra 

 in the Visual Region, Dr. Hnatek, 526 



Stellar Velocities: Radial Velocity of a Cygni, O. J. 

 Lee, 189 ; Determination of Radial Velocities, 226 ; 

 Radial Velocities and Spectral Types of Stars, Wm. E. 

 Rolston, 424 



Sun: Sun's Energy Spectrum and Temperature, C. G. 

 Abbott, 54; Sun's Rotation Period, Spectroscopic 

 Investigation, W. S. Adams and J. S. Lasby, C. P. 

 Butler, 112; International Solar Research, C. P. But- 

 ler, 292 ; Sun's Radiation and Terrestrial Meteorology : 

 Need of Adjustment of Data, Prof. Very, 389 ; Wave- 

 length of the Solar Line D,, A. Perot, 572 



Sun, Eclipses of: Total Eclipse of April 17, 1912, C. E. 

 Stromeyer, 6, Facilities for Viewing, G. F. Chambers, 

 292, Mean Value of Cloudiness in France at the date, 

 A. Angot', 436 ; Photography of H during Solar 

 Eclipses, C. P. Butler, 244, 349, Rev. A. L. Cortie, 



S.J-, 349 

 Sun-spots: Sun-spots and Flocculi m 1910, 121; Spots 

 and Faculae, Observations, J. Guillaume, 33 ; Sun-spots 

 and Climate, O. Meissner, 190 ; the Question of Sun- 

 spot Influence, A. B. MacDowall, 449 

 Tides and Kindred Phenomena in the Solar System : 

 Boston Lectures, Sir G. H. Darwin, K.C.B., 35 

 Astrophysics : Chemical Unity of the Cosmos, Prof. Fowler, 

 121 ; Smithsonian Report, C. G. Abbott, 162 ; Chemical 

 Origin of various Lines in Solar and Stellar Spectra : 

 Investigations at the Solar Physics Observatory, S. 

 Kensington, F. E. Baxandall, 416 ; Astrophysics in 

 Canada : Report of the Chief Astronomer, 565 

 Atlantis the Vanished Continent, L. Germain, 166 

 Atmosphere : Investigation of the Upper Atmosphere : 

 British Association Report, 161 ; Temperature of the 

 Upper Atmosphere, R. M. Deeley, 211; Carbon Dioxide 

 in Air of Antarctic Regions, Proportion of, A. Miintz 

 and E. Lain^, 268 ; Vertical Currents in the Atmosphere, 

 Dr. P. Ludewig, 294 ; the Isothermal Layer of the Atmo- 

 sphere, Commander C. Hepworth, 414 ; Atmospheric 

 Circulation over the Tropical Atlantic, E. Gold, 519 

 Aurorse in Middle Latitudes, Dr. Krebs, 20 

 Australia, Burrinjack Dam on Murrumbidgee River, 228 



Bacteriology : Influence of Constituents of a Bacterial 

 Emulsion on Opsonic Index, A. F. Hayden, W. P. 

 Morgan, 66 ; Aids to Bacteriology, C. G. Moor and 

 Wm. Partridge, 106 ; Bacterial Diseases of Plants, Dr. 

 E. F. Smith, 528 



Balloon Envelopes, Permeability to Hydrogen of, M. Julhe, 



573 



Beach-la-mar, see Ethnology 



Bee, How Pollen is collected by the Honey-, F. W. L. 

 Sladen, 586 



Beet-root Distilleries, Comparison of Results of Maceration 

 and Diffusion, L. Ammann, 539 ; Influence of the Extrac- 

 tion Liquid upon Beet-root Pulps, L. Ammann, 573 



Belfast, New Mechanical Engineering Laboratory, 228 



Bessemer Memorial Gift to the Royal School of Mines, 453 



Biochemistry : Chemical Phenomena in Life, Prof. F. 

 Czapek, 241 ; Carbohydrate Formation in the Snowdrop, 

 J. Parkin, 395 



Biography : Thomas Young and Gottingen, H. S. Rowell, 

 ';i6; Fitzroy and Darwin, 1831-36, Dr. Francis Darwin, 

 F.R.S., ;;47 



Biology : the Works of Aristotle translated into English : 

 de Generatione Ahiitialium, Prof. A. Piatt : de Partibus 



Animalium, Dr. \V. Ogle : Historia .Vnimalium, Prof. 



D'Arcy W. Thompson, i ; Spirochaetje : Probleme der 



Protistenkunde, Prof. F. Doflein, 209 ; Constructive 



Biology : Some Neglected Factors in Evolution, H. M. 



Bernard, 272 ; Phytoplankton des Siisswassers, Prof. H. 



Bachmann, G. S. West, 277 ; Outline;' of Biology, Dr. 



P. Chalmers Mitchell, F.R.S., 410; Javanische Studien, 



H. Miehe, W. Botting Hemsley, 599 

 Biology, Marine : Life in the Sea, James Johnstone, 75 ; 



the Pourquoi Pas? as a Laboratory for Research, J. ii. 



Charcot, 166 

 Biometricians as Anthropologists, Dr. C. Bennington, Prof. 



K. Pearson, F.R.S. , 261 

 Bird Diseases : Cholera-like Diseases among Poultry, 17 ; 



Fowl Pest, E. Hindle, 604 

 Bird-marking in the Netherlands, Dr. van Oort, 427 

 Bird-migration : Bulletin of the British Ornithological Club, 



318; List of 48 Species of Australian Birds which visit 



Siberia, S. A. Buturlin, 426 ; Bird-migration in the 



Solwav District, R. Service, 426 

 Birds : 



General : Presence of Two Ovaries in certain British 

 Birds, especially Falconidae, T. E. Gunn, 132 ; Value 

 of Birds to Man, J. Buckland, 265 ; Observations of 

 Body Temperature of some Diving and Swimming 

 Birds, Prof. S. Simpson, 303 ; the Young Ornithologist : 

 Guide to the Haunts, Homes, and Habits of British 

 Birds, W. P. Westell, A. R. Horwood, A. R. Thomp- 

 son, 352 ; Studies of Bird-life in Uganda, Dr. R. A. L. 

 van Someren and V. G. L. van Someren, Sir H. H. 

 Johnston, G.C.M.G., K.C.B., 374; Rare Stragglers to 

 Britain, Eagle Clarke, 427 



Particular: Auk, Great: History of Stuffed Specimen and 

 Egg in Norwich Museum, J. H. Gurney, 426; Black- 

 bird, Vernal Plumage Changes in the Adolescent, and 

 their Correlation with Sexual Maturity, Prof. C. J. 

 Patten, 125 ; Curlew, Slender-billed, in Britain, 191 ; 

 Diphlebia, ' the Genus (Neuroptera : Odonata), with 

 Descriptions of New Species and Life-histories, R. J. 

 Tillyard, 167 ; Diver, Photography of Black-throated, 

 O. G. Pike, 426 ; Fowl, Prehistoric Origin of the 

 Common, F. J. Stubbs and A. J. Rowe, 427; Heron, 

 Ontogenetical Transformations of the Bill in Ardea 

 cinerea, Prof. P. P. Sushkin, 132 ; Honey-guides, S. 

 African : Deciduous Hooks on Beak, A. Haagner, 427 ; 

 Lyre-bird, Mimicking Power, E. B. Nicholls, 427 ; 

 Partridge, Moulting, Dr. L. Bureau, 190; Penguin, 

 King, in Zoological Gardens, Moulting of the, D. 

 Seth-Smith, 132 ; P/ieasant-countries of Asia, C. W. 

 Beebe, 191 ; Pine-bunting captured at Fair Isle, E. 

 Clarke, 427 ; Woodpecker, English Green, Dr. E. 

 Hartert, 190 ; Woodpeckers : Damage to Trees by 

 Sap-sucking, W. L. McAtee, 426 

 Bleaching and Finishing of Cotton, the Principles of, S. R. 



Trotman, E. L. Thorp, 138 

 Blood, an Oxyhaemoglobin Band in the Ultra-violet Spec- 

 trum of. Mile. E. Peyrega and F. Vl^s, 437 

 Botany : 



General : Botanical Literature, 17 ; Manchester Univer- 

 sity, New Botanical Laboratories, 55 ; a Text-book of 

 Botany and Pharmacognosy, Prof. H. Kraemer, Prof. 

 H. G. Greenish, 137 ; Smithsonian Report, 162 ; the 

 Water-balance of Succulent Plants, Mrs. E. S. Spalding, 

 Prof. D. T. Macdougal, 249 ; Recueil de I'lnstitut 

 Botanique L^o Errera, J. Massart, 599 



Particular : Alpine Plants of Europe, and Cultural Hints, 

 H. S. Thompson, 310; Aspergillus niger. Influence of 

 Calcium on, Mile. Robert, 269 ; Australia : Native 

 Flora of New South Wales, R. H. Cambage, 167 ; 

 Australia : Indigenous Plants of the Cobar District, 

 Archdeacon F. E. Haviland, 167; Aztecs, Sacred Ear- 

 flower of the, W. E. Safford, 162 ; Conifers : Dicho- 

 tomic Nervation, A. Tison, 437; Daghestan, Flora of, 

 N. I. Kuznetsof, 600; Elodea canadensis, Michx., Dis- 

 tribution of, in the British Isles in 1909, 132 ; Formosa, 

 Flora of. Dr. Hayata, W. Botting Hemsley, F.R.S., 

 330 ; Foxglove Plants (Digitalis purpurea), Mutations 

 in, N. C. Macnamara, 165 ; Indian Fibre Plants, Mr. 

 and Mrs. A. Howard, 17 ; India : Flora of the Upper 

 Gangetic Plain and of the Siwalik and Sub-Himalayan 

 Tracts, J. F. Duthie, 411; Legnminosae, Seedling 



