XVI 



Index 



[.v.. 



Nature^ 

 'urer 25, 1909 



Dohrn (Prof. Anton), Death of, 400 ; Obituary Notice of. 

 Sir E. Ray Lanlicster, K.C.B., F.R.S., 429 



Dollo (Prof. LouisJ, Sematonurus lecointci, 29 ; Extinct 

 (jigantic Reptiles of Belgium, 148 



Domin (Ur. K.), Study of Various Morphological Features 

 in the Umbelliferae, 297 



Dornic (M.), Sterilisation by the Utra-violet Rays, Applica- 

 tion to the Butter Industry, 210 



Dorsey (Dr. H. G.J, Magnetostriction, 474 



Doubek (Miss M.J, Nature 01 the Tendrils in the Cucur- 

 bitacea;, 226 



Double Stars : Micrometer Measures of Double Stars, 

 Phillip Eo.\, 83 ; Double-Star Measures, Prof. R. G. Aii- 

 Icen, 138 ; Prof. Burnham, 37b ; Double-Star Observa- 

 tions, Prof. Doberck, 436 ; Publikationen des astro- 

 physikalischen Observatonums zu Potsdam, Doppelsterne, 

 Prof. O. Lohse, 492 



Douglas (Dr. J.), Influence of the Railroads of the United 

 States and Canada on the Mineral Industry, 530 



Douglas (James A.), Carboniferous Limestone of County 

 Clare, 811 



Downey (Prof. June), " Muscle Reading," 198 



Drew (G. H.), Reproduction and Early Development of 

 Laminaria digitata and Lawiiiariti saccharina, 58 



Drew (G. Harold), a " Canaan .Stone," 486 



Drought in South-west Ireland, Geo. A. Armstrong, 487 ; 

 Dr. Hugh Robert Mill, 517 



Drugs, the Chemistry of, Prof. Henry G. Greenish, 184 



Drugs and the Drug Habit, Dr. Harrington Sainsbury, 271 



Drummond (W. B.J, Elementary Physiology for Teachers 

 and Others, 425 



Duane (William), Heat of Polonium, 29 



Dublin Royal Society, 89 



Dubrisay (Rene), the Hydrolytic Decomposition of Bismuth 

 Bromide, 120 ; the Hydrolytic Dissociation of Bismuth 

 Iodide, 330 



Ducloux (ijr.), the Antiquity of Man in South America, ^34 



Dufour (A.), Electric Discharge through Vacuum Tubes, 

 Deviable Rays not due to Free Positive Electrons, 19 



Duheni (Pierre), Etudes sur Leonard de Vinci, ceux qu'il 

 a lus et ceux qui I'ont lu, 2 ; Essai sur la Notion de 

 Theorie physique de Platon a Galilee, 361 



DumviUe (Ijenjamin), the Science of Speech, an Elementary 

 Manual of English Phonetics for Teachers, 124 



Dustless Roads, Tar Macadam, a Practical Treatise for 

 Engineers, Surveyors, and Others, T. Walker Smith, 92 



Dulta (B. B.), Constitution of the Roots of Arisaema ton- 

 cinnuin, 270 



Dutton (Louie M.), Cambridge County Geographies : 

 Somerset, 188 



Dyeing and Cleaning of Textile Fabrics, the, F. A. Owen, 

 Prof. Walter M. Gardner, 5 



Dynamics : Geometric der Krafte, H. E. Timerding, Sir 

 Robert Ball, F.R.S., 34; a First Dynamics, C. S. Jackson 

 and W. M. Roberts, 156; \'orlesungen iiber technische 

 Mechanik, Dr. August Foppl, 274 



Earhart (R. F.), Effect- of Temperature Variations on the 

 Luminous Discharge in Gases for Low Pressures, 473 



Earland (.A.), .Arenaceous Foraminifera, 79 



Earth Slopes, Retaining Walls, and Dams, Graphical 

 Determination of. Prof. C. Prelini, 393 



Earth's Surface, Movements of the, Ch. Lallemand, 457 



Earthquakes : Two Severe Earthquakes in Mexico Citv, 

 166; Fracture of Cables by the Earthquake of January 

 14, 1907, Maxwell Hall, 198 ; Earthquake in Central 

 Japan, 225 ; Earthquake .Shocks on September 22, 401 : 

 Earthquake in Shetland, 460 ; Earthquake at Reggio di 

 Calabria, 460 ; Earthquake of October 8, 1909, Alfred 

 Angot, 510 



Ebell (Dr. M.), the Identity of Comets 1908a and iqo8fc 



(Encke), 83 ; Ephemeris for Comet 19090 (Borrelly- 



Daniel), 267 ; Observations of Perrine's Comet, 19096, 37(1 



Ebro, Rock Paintings of the Lower, I'Abbe Breuil and 



Juan Cabri^, 522 

 Eclipse, the Solar, of June 17, 1909, Father Rigge, 171 

 Economic Biologists, Association of, 114 

 Eddington (A. S.J, Law of Distribution of Stellar Motions, 



471 

 Edinburgh Royal Society, 29, 59, 148 



Edinger (Prof. Ludwig), Einfiihrung in die Lehre vom 

 Uau und den \'errichtungen des Nervensystems, 219 



Edridge-Green (Dr. F.J, Spectroscope for estimating Colour 

 Perception, 20 



Edser (Edwin), the Analysis of Sounds Used in Speech, 533 



Education: Child Employment and Evening Continuation 

 Schools, Cyril Jackson, 50; the King on increased Pro- 

 vision for -Advanced Scientific Instruction and Research, 

 83; the Position of Higher Education, 113; State Aid for 

 University Education, 133 ; Report of the Consultative 

 Committee of the Board 01 Education on Attendance, 

 Compulsory or Otherwise, at Continuation Schools, 172 ; 

 the Position of Science Teaching in Public Schools, 192 ; 

 Psychologie de I'Enfant et Pedagogic experimentale. Dr. 

 Ed. Clapar^de, Prof. J. A. Green, 214; the Administration 

 of Agricultural Education, 428 ; die biologischen 

 Schiileriibungen, Erich Leick, 429 ; FreiwiUige Schiiler- 

 iibungen in Physik in humanistischen Gymnasien, Prof. 

 Dr. Edmund Hoppe, 429 



Edwards (C. A.), Liquidus Curves of the Ternary System 

 Aluminium-Copper-Tin, 26 



Edwards (J.J, New Beetle, Dryops anglicus, from Horning, 

 462 



Eel, Remarks on the Metamorphosis and Distribution of 

 the, {AiigidlUi vulgaris, Turt.J, Jobs. Schmidt, 191 



Egypt : an Egyptian Oasis : an Account of the Oasis of 

 Kharga in the Libyan Desert, witli Special Reference to 

 its Historv, Phvsical Geography, and Water Supply, 

 H. J. Llewellcn Beadnell, Prof. John W. Judd, C.B., 

 F.R.S., 70; the Cadastral Survey of Egypt, 1892-1907, 

 Capt. H. G. Lyons, 194 ; Terrestrial Refraction in Egypt, 

 Mr. Xydis, 43(5 ; Messrs. Craig and Keeling, 436 



Egyptology : Find of String .Nets of tlie Seventeenth 

 Egyptian Dynasty, Prof. Flinders Petrie, 403 



Eichhorn (Dr. Gusta.v), Vererbung, Gedachtnis und Trans- 

 zendentale Erinnerungen voin Scandpunkle des Physikers, 

 361 



Elderton (Ethel .M.), Relative Strength of Nurture and 

 Nature, 403 



Electricity : New Method to Secure an Almost Undamped 

 Series of Oscillations in the Secondary Circuit of the 

 Sender, Prof. Fleming, 19 ; Effect of Electrostatic Con- 

 densers in Preventing or Extinguishing .Arcs, W. M. 

 Mordey, 20; Metallic Filament " Tubolite," the Linolite 

 Companv, 20 ; Model of Leakage Path Device for Regu- 

 lating Voltage of Alternators, Hon. C. A. Parsons, 

 F.R.S., 20: the Absolute Value of the Mechanical 

 Equivalent of Heat in Terms of the International Elec- 

 trical Units. Prof. H. T. Barnes, 25 ; Electric Induction 

 through Solid Insulators, Prof. H. A. Wilson, 26; 

 Passage of Electricity through Gaseous Mixtures, E. M. 

 Wellisch, 27 ; the Coefficients of Capacity and the Mutual 

 Attractions or Repulsions of Two Electrified Spherical 

 Conductors when Close Together, Dr. A. Russell, 27 ; 

 Experiment with the Spark Gap of an Induction Coil, 

 Dr. Dawson Turner, 29 ; lonisation of Air by High- 

 tension Electric .Mains, L. HouUcvigue, 29 ; Galvanometer 

 for Alternating Currents, M. Guinchant, 29 ; Effect of a 

 Magnetic Fielcl on the Electrical Conductivity of Flame ; 

 Prof. H. .A. Wilson, 56; Electrical Reactions of Certain 

 Bacteria Applied to the Detection of Tubercle Bacilli in 

 Urine by Means of an Electric Current, C. Russ, 57 ; the 

 Elements of Electricity and Magnetism, Prof. W. S. 

 Franklin and Barry Macnutt, 66 ; a Short University 

 Course in Electricity, Sound, and Light, Dr. Robert .A. 

 Millikin and J. Mills, 66; the Elementary Theory of 

 Direct Current Dynamo Electric Machinery, C. E. Ash- 

 ford and E. W. E. Kempson, 66 ; Electrical Laboratory 

 Course for Junior Students, R. D. .Archibald and R. 

 Rankin, 66; Experiments on the Inertia of the Negatively 

 Charged Particles of the /3 Rays from Radium distinctly 

 in Favour of " Principle of Relativity," Dr. E. Hupka, 

 82 ; \'ectors and Vector Diagrams .Applied to Alternat- 

 ing-current Circuit, W. Cramp and C. F. Smith, 03 ; 

 Occasional Unexplained Ringing of House-bells, Sir 

 Oliver Lodge. F.R.S., 98; Rev. C. L. Tweedale, 189; Dr. 

 John .Aitken, F.R.S., 246; Most Probable \'alue of the 

 .Atomic Charge c of Electricity, M. Moulin, 109; 

 Measurement of Wave-length for High-frequencv Elec- 

 trical Oscillations, .A. Campbell, 119; the .-Icarus Crossii, 

 Charles E. Benham, 127 ; Modern Electric Practice, 

 Maurice Solomon, 151 ; Magneto- und Elekt^o-optik, Dr. 

 VVoldemar \'oigt, 1S5 ; Cours de Physique, Electroptique, 



