Nature, ~j 

 April II, 1912J 



Index 



XIX 



Thompson (J.), Chemical Action of Bacillus cloacae (Jordan) 

 on Glucose and Mannitol, 502 



Thomson (Prof. J. Arthur), Introduction to Science, 139 



Thomson (J. G.), a Simple Automatic Syphon, 550 



Thomson (Sir J. J., F.R.S.), Application of Positive Rays 

 to the Study of Chemical Reactions, 200 ; Article on, by 

 Dr. P. Phillips, 387 ; Functions of Lectures and Text- 

 books in Science Teaching : Presidential Address to 

 Association of Public School Science Masters, 399 



Thomson (Dr. J. Stuart), Dorsal Vibratile Organ of the 

 Rockling, 27 



Thorndike (E. L.), Animal Intelligence : Experimental 

 Studies, 306 



Thorp (T.), New Method for Testing Curvature of Parabolic 

 Mirrors, 132 ; a Crossed Transparent Grating, 504 



Tikhoff (G. A.), Colour Photography of Saturn, 20 ; Photo- 

 graphic Registration and Reproduction of the Twinkling 

 of the Stars, 572 



Tillyard (R. j.), the Genus Diphlebia (Neuroptera : 

 Odonata), 167 



Tims (Dr. Marett), Origin of Mammals, and Dentition 

 (British Association), 294 



Tison (A.), Dichotomic Nervation in the Conifers, 437 



Tod (H. M.), Vine-growing in England, 173 



Todd (Prof.), Possible Changes in Saturn's Rings, 388, 526 



Todd (J. L.) and G. B. Wolbach, Stone Circles in the 

 Gambia, 152 



Topinard (Prof. Paul), Death, 288 ; Obituary, 322 



Tournois (J.), Formation of Embryos in the Hop by the 

 Action of Pollen of Hemp, 269 



Townsend (Prof. J. S.), Determination of the Coeflficient 

 of Interdiffusion of Gases and the Velocity of Ions under 

 an Electric Force, in Terms of the Mean Free Paths, 469 



Tozzer (A. M.), Preliminary Study of the Ruins of Tikal, 

 Guatemala, 247 



Trabut (M.), a Disease of the Date Palm, Khamedj, 539 



Tredgold (Dr. A. F.), Mental Defect, 91 



Trevelyan (Dr. E. F.), Death, 221 



Trotman (S. R.) and E. L. Thorp, the Principles of 

 Bleaching and Finishing of Cotton, 138 



Trotter (A. P.), Illumination : its Distribution and Measure- 

 ment, 72 



Troup (R. S.), Teak Forests of Burma, 386 



Trouton (Prof. F. T.), Mechanism of the Semi-permeable 

 Membrane and a New Method of determining Osmotic 

 Pressure, 401 



Tsuiji (Y.), Earth Temperature at Taihoku (Formosa), 52 



Turner (Miss E. L.), Discovery of a Nestling Bittern in 

 Norfolk on July 8, 191 1, 502 



Turner (Prof. H. H., F.R.S.), Periodogram of Earthquake 

 Frequency, 125 ; Determination of Differential Star Places 

 by Photographic Methods, 267 



Turner (R. E.), Revision of the Australian Species of the 

 Genus Cerceris (Hymenoptera), 437 



Turner (Prof. T.), Behaviour of certain Alloys when heated 

 in Vacuo, 428 



Tutton (Dr. A. E. H., F.R.S.), Rock Crystal : its Structure 

 and Uses (Cantor Lectures), 261 ; Erratum, 291 ; 

 Crystallography and Practical Crystal Measurement, 439 ; 

 Crystals, 439 



Twenhofel (W. H.), Physiography of Newfoundland, 594 



Twining (Rear-Admiral N. C), Nitro-cellulose Smokeless 

 Powder, 357 



Twort (F. W.) and G. L. Y. Ingram, Method for Isolating 

 and Cultivating the Mycobacterium enteritidis chronicae 

 pseudo-tuberculosae bovis (Johne) and Experiments on 

 Preparation of a Diagnostic Vaccine, 502 



tlh':^ (Prof. Victor), Paleontologia Indica : Himalayan 



Fossil.: • Ammonites of the Spiti Shales, 53 1 

 Ulehla (V.), ivlotions of Flagella of Microscopic Organisms 



observed with Ultra-microscope, 324 

 Unwin (Dr. W. C, F.R.S.), Some Engineering Problems 



and the Education of Engineers : Address to the Inst. 



of Civil Engineers, 92 

 Urbain (G.), Laboratory Balance with Electromagnetic 



Compensation for the Study of Systems giving off Gas 



with a Sensible Velocity, 573 

 Urbain (G.) and F. Bourion, Europous Chloride, 269 



Vallery (L.), Coagulation of Albumen by Heat, 269 



Vallot (J.), Protection of Observatories at High Altitudes 



against Lightning, 133 

 Van der Riet (E. de St. J.), a supposed new Mineral from 



Du Toit's Pan, Kimberley, i66 

 Van Oort (Dr.), Bird-marking in the Netherlands, 427 

 Vassall (A.), Science Teaching and Psychology, 395 

 Vavon (G.), a Method of Preparation of the Aromatic 



Alcohols, 573 

 V6drines (J.), Proposed Attempt to reach S. Pole by Aero- 

 plane, 454 

 Verain (L.), Dielectric Constant of Carbon Dioxide in the 



Neighbourhood of the Critical Point, 573 

 Very (Prof. F. W.), Are the White Nebulae Galaxies? 155; 



Need of Adjustment of the Data of Terrestrial 



Meteorology and Solar Radiation, 389 

 Viguier (P. L.), Unsuccessful Attempts to prepare Tetrolic 



Aldehyde, 133 

 Villard (P.) and H. Abraham, Measurement of Explosive 



Potentials between 20,000 and 300,000 volts, 269 

 Vincent (Dr. J. H.) and A. Bursill, a Negative Result 



connected with Radio-activity, 504 

 Violle (J.), a Reversion of the Double Rose to the Single 



Form, 133 

 Voisenet (E.), Disease of Bitterness in Wines and Acrylic 



Fermentation of Glycerol, 99 

 Voute (Herr J.), Double-star Measures, 189 



Wace (Mr.), Survivals in N. Greece of Dionysiac Festivals, 



382 

 Wade (E. B. H.), the Plumb-line near the Nile Valley, 594 

 Walden (Prof.), Formamide as an Ionising Solvent, 387 

 Walker (A. O.), Distribution of Elodea canadensis, Michx., 



in the British Isles in 1909, 132 

 Walker (Dr. Charles), Inheritance of Mental Characters, 



no, 202, 278 

 Walker (Dr. C. E.), Normal Variations in Chromosomes, 



51 

 Walkom (A. B.), New Species of Favosites from the Yaas 



District, N.S.W., 437 

 Wallace (Dr. A. R., F.R.S.), Relation of Present Plant 



Population of the British Isles to the Glacial Period, 57 

 Waller (Dr. A. D., F.R.S.), "External" Degrees at the 



University of London, 567 

 Walton (H. J.) and S. Kemp, Distribution of Minute 



Aquatic Crustaceans of Genus Apus in E. Asia, 456 

 Warburton (C), the Genus Rhipicephalus, 604 

 Ward (Dr. F.), Marvels of Fish Life as revealed by the 



Camera, 316 

 Ward (H. Snowden), Death, 220 ; Photograms of the Year 



1911-1912, 347 

 Wargny (Prof. C.), Trigonometrfa Esf^rica, 105 

 Warren (S. H.) and others, a Late Glacial Stage in the 



Valley of the River Lea, subsequent to the Epoch of 



River-drift Man, 470 

 Wassermann (Prof.), Remedy for Cancer in Mice, 384 

 Watt (A.), Glazed Frost, 516 

 Webb (Dr. W. W.), Death, 118 

 Weber (Dr. F.), Dormant Condition of Trees and Shrubs : 



Experiments, 463 

 Weber (Prof. H.), die partiellen Differentialgleichungen der 



mathematischen Physik, nach Riemann's Vorlesungen 



bearbeitet, 579 

 Weber (Prof. L.), the Divining Rod, 288; Tests of Day- 

 light Illumination, 600 

 Weersma (Dr.), Internal and Cloud Velocities of Groups 



of Stars in relation to Spectral Type, 494 

 Weevers (Dr. Th.), Isolation from the Spadix of Sauro- 



matum venosutn, 357 ; Localisation and Function of 



Potassium in Plants, 423 

 Weiss (Dr. E.), Explanation of Deviations of Values found 



for the "Atom" of Electricity, 493 

 Weiss (P.) and O. Bloch, Magnetisation of Nickel, Cobalt, 



and their Alloys, 133 

 Welldon (Bishop), Educational Science (Brit. Assn. 



Address), qo 

 Welton (Prof. J.), the Psychology of Education, 20s 

 Wertheimer (Prof. J.), Examinations in Secondary Schools, 



t;87 

 West (G. D.). Resistance to Motion of a Mercury Thread 



in a Glass Tube, 198 



