April : 



Index 



Lead Concentrating Mill in New South Wales, S. C. 

 Bullock, 5S6 



Leather Chemists' Pocket-book, 360 



Left-handedness, H. E. Jordan, 469 



Legends of our Little Brothers, Lilian Gask, 331 



Lens or Burning Glass? John Phin, 571 



Lepidoptera : Experimental Researches on Variations in 

 Colouring, Dr. Arnold Pictct, F. Merrifield, 135 ; sec 

 Butterflies 



Leprosy in New South Wales, Dr. Thompson, 366 



Libya Italica, P. V. de Rcgny, 330 



Lichens, List of British, 392 



Life, Mechanistic Conception of, Dr. J. Loeb, Prof. E. .\. 

 Schafer, F.R.S., 327 



Lifts in Palace in Ancient Rome, Prof. Boni, 709 



Light : 



General: Practical Exercises in Physiological Optics, Dr. 

 G. J. Burch, F.R.S., 187; Preston's "Theory of 

 Light": New Edition, 231; M^moires sur I'Electricit^ 

 et rOptique, A. Potier, 246; Treatise on Light, 

 Christiaan Huygens, Silvanus P. Thompson, 246 ; 

 Lehrbuch der Op"tik, P. Drude, Dr. E. Gehrcke, 567 

 Special : Sensitiveness of Selenium to Different Colours, 

 A. H. Pfund, 136; New Method of Measuring Velocity, 

 C. F^ry, 299 ; Scattering and Absorption in Gaseous 

 Media with applications to Sky Radiation, L. V. King, 

 349; Emissivity of Gold, E. M. Stubbs and Dr. 

 Prideaux. 349 ; Optical Properties at the Critical Point, 

 C. Smith, 349 ; Application of Optical Methods to 

 Technical Problems of Stress Distribution, Prof. E. G. 

 Coker, 383 ; Chemical Effects of Light, W. A. Davis, 

 393 ; Halos surrounding Shadows of Heads, Profs. 

 Fuchino and Izu, 419 ; Miss A. Everett, 570 ; J. Ever- 

 shed, L. L. Fermor, 592 ; Dr. H. F. Parsons. L. Don- 

 caster, 621 ; on Water, Rev. O. Fisher, 621 ; Prof. 

 A. M. Worthington, C.B., F.R.S., 647; Self-testing of 

 Dispersion Apparatus, Prof. C. V. Burton, 435 : 

 Luminosity in Plants, Prof. H. Molisch, 441 ; Optical 

 Properties of a Liquid submitted to Simultaneous 

 .'\ction of Two Electric and Magnetic Fields, A. Cotton, 

 455 ; Microscope Improvements, 495 : Double Refrac- 

 tion produced by Distortions of Elastic Bodies by 

 Volterra's Theory, Prof. O. M. Corbino, 540 ; Light 

 Perception and Colour Perception, Dr. F. W. Edridge- 

 Green, 543 ; the Brocken Spectra, Miss A. Everett, 

 571 ; Microscopical Optics and Fluorite, C. Metz, 603 : 

 Sleasurement of Torque produced by a Beam of 

 Light refracted through a Glass Plate, Dr. G. Barlow, 

 612 ; Refraction and Dispersion of the Halogens, &c., 

 Clive and Maude Cuthbertson, 612 ; Absorption by 

 Inorganic Salts, .•\. R. Brown, 638 ; Light and Plant 

 Assimilation, A. Miintz, 66^; Retinal Shadows, R. M. 

 Deeley, 594, C. W. Piper, 682 



Lighting : Small Store Lighting in America, C. L. Law 

 and A. L. Powell, 392 ; Studies in Light Production, 

 Dr. R. A. Houston, 460; Lighting of Factories, 577; 

 National Electric Lamp .Association of Cleveland, 709 ; 

 see also Illumination 



Lightning and Forest Fires, F. G. Plummer, 511 ; Lightning 

 Conductors and Telephone Wires, J. Violle, 717 



I.incei, R. Arcademia dei. Anniversary Meeting, 88 



Linnean Society's Reception : Address by Prof. Hcrdman, 

 F.R.S., 371 



Linseed Cake. Prussic Acid from. Prof. Auld, 174 



Lions in Ancient Sinhalese Art, 523 ; Dr. Joseph Pearson, 



Lipoids : Estimation of Lipoids in Blood Serum, L. Grim- 



bert and M. Laudat, 351 ; Physiological Properties, H. 



Iscovesco, 428 

 Liquid Measurement by Drops, R. Donald, 612 

 Lister Memorial, 254, 364 

 Lii'c Stock Journal Almanac, 492 

 Liverpool School of Tropical Medicine ; Expedition to West 



Indies, 257 

 Load-extension Diagrams, Prof. W. E. Dalby, 690 

 Local -Authorities' Trading, D. Knoop, N. B. Dearie, 536 

 Local Government Board Report, 703 

 Logarithms, Genesis of, A. Ferguson, 259 ; Napier of 



Merchiston's Centenary, 548 

 London Mathematical Society's Council Election, 337 



London School of Tropical .Medicine : Dinner, 257 

 London, University College, New Pharmacological Labora- 

 tory, 420 

 Lcugh Neagh, see Plankton 

 Luminous Halos. see Halos 



Madagascar Minerals and Gems, A. Lacroix, 97, 272, 613 



Madras Museum, 170 



Magnetisation of Water and of Oxygen, P. Weiss and A. 

 Piccard, 455 ; Constitution of Water and Thermal 

 Variation of' its Magnetisation, A. Piccard, 507 



Magnetism : Convection of Ions produced by Magnetic 

 Rays Prof. A. Righi, 91 ; lonomagnetic Rotation, a 

 New Phenomenon Prof. Righi, 230 ; Junior Magnetism 

 and Electricity, Dr. R. H. Jude and Dr. J. Satterly, 

 246 ; Magnetic Rotation Spectrum of Bromine, G. 

 Ribaud, 325 ; Dead-heat Galvanometer with Moving 

 Needle. C. 'F^ry, 376; Mean Magnetic Moment and 

 Energy of a Vibrating Magnet, Dr. J. R. Ashworth, 

 533 ; Magnetic Materials, Testing Method at the 

 Reichsanstalt, 627; Magnetic Behaviour of Iron, &c., 

 under Oscillatory Discharge, Prof. E. W. Marchant, 

 636; Additivity of Diamagnetism in Combination, P. 

 Pascal, 63S ; Variation of Magnetic Susceptibility with 

 Temperature, A. E. Oxley, 663 ; Magnetic Properties 

 of Alloys, 686 



Magnetism, Terrestrial : Wireless Telegraphy and Terres- 

 trial Magnetism, Dr. C. Chree, F.R.S., 37; Origin of 

 the Earth's Magnetic Field, Dr. L. A. Bauer, 286-7; 

 Magnetic Observations off East African Coast, 442; 

 New Theory of Magnetic Storms, J. Bosler, 471 ; Sun's 

 Magnetic Field, H. Deslandres, 551 ; Analytical Expres- 

 sion for Components of Diurnal Variation, G. W. 

 Walker, 636 ; Zeeman Effect due to Magnetic Field at 

 Sun's Surface, Dr. G. E. Hale. 682 



Malaria in the Andaman Islands, Major Christophers, S49 



Malay Peninsula, Geological History of, J. B. Scrivenor, 

 636 



Maldive Islands, Anthropometric Data, Dr. Duckworth, 

 Dr. S. Gardiner, 376 



Males, Fragility of. A. Pinard and A. Magnan, 664 



Malta and the Mediterranean Race, R. N. Bradley, 464 



Mammoth, Ivory Statuette of, found near Prerau, 138 



Man and his Conquest of Nature, Dr. M. I. Newbigin, 131 



Manchester School of Technology : Journal, 92 ; Manchester 

 Museum Extension, 285 



Manometer, New Quartz, Dr. G. E. Gibson, 638 



Manufacture of Cocoa and Chocolate, R. Whymper, 357 ; 

 Foods, Dr. Wm. Tibbies, 357 



Maps : Bacon's New Globe with Contour Colouring, 161 ; 

 Erichsen's Maps of Greenland. 258; Maps: How they 

 are made : how to read them, Prof. H. N. Dickson, 

 329; New "Contour" Wall Map of the Mediterranean 

 Lands, 360 . 



Marine Biological Association of W. Scotland, 59 ; Marine 

 Biological Station at Port Erin, 629 



Marine Biology, see Biology, Marine 



Marlborough Country, the, H. C. Brentnall and C. C. 

 Carter, 157 



Mathematical Physics applied to Medicine, Prof. S. Salaghi, 

 114 



Mathematics : . . 



General : Fifth International Congress of Mathematicians 

 at Cambridge : Prof. E. W. Brown, Prince B. 

 Galitzin Sir W. H. White, P. J. Harding, Sir J. J. 

 Thomson, Dr. A. N. Whitehead, G. E. St. L. Carson, 

 Dr. T. P. Nunn. Prof. C. Runge, Prof. D. E. Smith, 

 4 ; " Method " of .'Archimedes, Sir T. L. Heath, 

 28- Practical Mathematics, John Perry, F.R.S.. 

 34! Prof. G. H. Bryan, F.R.S., 68; Place of 

 Mathematics in Engineering Practice : Cambridge 

 Lecture, Sir Wm. H. White, K.C.B.. F.R.S., 95; 

 Mathematical Logic and Principles, P. E. B. Jourdain, 

 114; Manual Training Woodwork Exercises treated 

 Mathematically, F. E.Drury, 304: Scientific Worthies, 

 Prof. J. H. Poincar(5, For.Mem.R.S., 353 ; Collected 

 Mathematical Papers, James J. Sylvester, F.R.S.. 379: 

 Opere Matematiche del Marchese G. C. Dei T. di 

 Fagnano, 590 ; the Teaching of Mathematics in 

 Secondary .Schools, A. Schultze, 697 



