June 1, 1893 Iberian Peninsula, The Geography and Social Conditions of Ice Consumed in Paris, the Question of the Purity of, 614 Ice Age, a Palæozoic, Dr. W. T. Blanford, F. R. S., 101, 152; Ice Age, the Great, N. L. W. A. Gravelaar, 200 Ice Ages, Ancient, T. Mellard Reade, 174; J. Lomas, 227 Ice-breaking Steamers, 350 Ice Crystals, C. M. Irvine, 31; B. Woodd Smith, 79 Idaho, Botanical Explorations in, D. T. Macdougal, 206 Ilkewitsch (M.), Methods of Examining Milk for Tubercle Illinois Wesleyan University, Bequest of Mr. Lichtenthaler's Illusions, Optical, R. T. Lewis, 31; W. B. Croft, 78 Invisible, Astronomy of the, Dr. J. Scheiner, 88 Ireland, Arthur Young's Tour in (1776-79), 341; Glacial Drift Iron: on Iron Alloys, 58; Diamond in Meteoric Iron, C. Friedel, Irrigation in New South Wales, Artesian Boring and, J. W. Irvine (C. M.), Ice Crystals, 31 Irving (Rev. Dr. A.), Ice Crystallites, 126 Irving (Rev. Dr., F. R.S.), the Sandgate Landslip, 581 Isomerism, a Remarkable Case of Geometrical, A. E. Tutton, 65 Italiana, Bolletino della Società Botanicà, 23 Izarn (M.), Permanent Soap Bubbles formed with a Resinous Jackson (F. G.), Proposed Arctic Expedition by way of Franz Jackson (Dr. M. J.), Printing Mathematics, 227 Jacoby (Prof. Harold), Rutherfurd Measures of Stars about B- Jaeger (W.), on the Temperature Co efficient of the Electrical Jaeger (Herr), Typhoid Fever attributed to Bathing in Polluted Image, the Photography of an, by Reflection, Frederick J. Jahrbuch der Astronomie und Geophysik, 566 Imagination, Measure of the, Francis Galton, F.R.S., 319 India: Industrial School Opened at Lucknow, 111; Mortality Indians, North American, Dr. Ten Kate on the Type-Charac- Indies, West, Observations in the, Prof. A. Agassiz, 608 Induction and Deduction: Edward T. Dixon, 10, 127; E. E. Industry, the Growth of Electrical, W. H. Preece, F. R.S., Influenza, Epidemic, F. A. Dixey, 244 Inglis (John), Experiments with Engines of s.s. Iveagh, 521 Jamaica Botanical Department, the, W. Fawcett, 348 Janet (Pierre), Electric Osciliations, 119; Hysteresis and Dielec- Japp (Prof. F. R., F.R.S), Van't Hoff's Stereochemistry, 510; Johnson (Prof. T.), a New Irish Alga, 167 Johnston-Lavis (Dr. H. J.), a New Seismograph, 257; Strom- Joly (Dr. J., F.R.S.), on the Cause of the Bright Colours of Joly (M.), Ruthenium, 451; Metallic Osmium, 497 Jones (L. M.), the determination of the Thermal Expansion Jones (T.), Descriptive Geometry Models for the Use of Students Joubin (P.), the Passage of a Wave through a Focus, 143: Re- Joule's (Dr.) Thermometers, Prof. Sydney Young, 317; Prof. Kapple (A. W.), Beetles, Butterflies, Moths, and other Kapteyn (Prof.), Stellar Magnitudes in Relation to the Milky Karop (E. C.), Messrs. Swift's Aluminium Microscope, 47 Kaufmann (M.) on the Pathogeny of Diabetes, 384; the Pancreas and the Nervous Centres Controlling the Glycemic Function, 479; the Pancreas and the Nerve Centres Regulating the Glycemic Function; Experimental Demonstrations Derived from a Comparison of the Effects of a Removal of the Pancreas with those of Bulbary Section, 528 Kayser (Dr. E.), Text-Book of Comparative Geology, 578 Kedarnath Basu, Relics of Primitive Fashions in India, 301 Keeler (Prof.), Comet Holmes (1892, 111), 518; Spectrum of B Lyræ, 616 Keltie (J. Scott), the Partition of Africa, 580 Kelvin (Lord, P. R. S.), Anniversary Address to Royal Society, 106; Prof. Rudolf Virchow, 110; Dr. Nils C. Dunér, 110; Prof. Charles Pritchard, F. R. S., 110; John Newport Langley, F.R.S., 110; the Velocity of Crooke's Cathode Stream, 164; Address at the Prescot Watch Factory, 279 Kempe (A. B., F.R.S.) on the Application of Clifford's Graphs to Ordinary Binary Quantities, 382 Keng (Lim Boon) on the Histology of the Blood of Rabbits Kew Bulletin, 38 Kimmins (C. W.), the Chemistry of Life and Health, 198 King (F. H.), the Movements of Ground-water, 206 Kipping (F. S.), the Reduction Products of Dimethyldiacetylpentane, 238; Products of Interaction of Zinc Chloride or Sulphuric Acid and Camphor, 239; a New Synthesis of Hydrindone, 311; Sulphonic Derivatives of Camphor, 405; the Action of Phosphoric Anhydride on Fatty Acids, 479; Regularities in the Melting Points of Certain Paraffinoid Compounds of Similar Constitution, 479; Formation of the │ Ketone 2: 6 dimethyl-1-ketohexaphane, 551 Kirby (W. Egmont), Beetles, Butterflies, Moths, and other Kirman (Walter), Isolation of Fluorsulphonic Acid, 87 Klein (Dr. E., F. R.S.), Aminol, a True Disinfectant, 149, 246 Knott (Prof. C. G.), on Recent Innovations in Vector Kochs (Herr), Ice Formation in Animal Body, 16 Kossel (Prof.), Further Researches on Nucleinic Acid, 72 Kreichgauer (D.) on the Temperature Coefficient of the Electrical Resistance of Mercury and on the Mercury Resistances of the Imperial Institution, 286 Kreutz (Prof.), Comet Books (November 20, 1892), 159 Krümmel (Prof.), Map of Salinity of Surface Water of North Kundt (Prof.), Experiments on the Influence of Temperature on Electro-magnetic Rotation of Light in Iron, Cobalt and Nickel, 503; Researches into the Study of Hall's Phenomenon, 624 Laboratories, Marine, in the United States, Prof. J. P. Camp bell, 66 Laboratories, the South Kensington, and Railway, 494 Lacaze-Duthiers (M. de), on the Attempt at Oyster Culture in the Roscoff Laboratory, 456 Lagrange (M.), The use of the Electric Current in Producing High Temperatures, 497; Intense and Rapid Heating Process by Means of the Electric Current, 503; a New Electrical Process Permitting the Production of Temperatures Superior to those Actually Realisable, 525 Lake Bangweolo, Joseph Thomson's Journey to, 115 Lake of Geneva, Prof. F. A. Forel, Prof. T. G. Bonney, F.R.S., 5 Lake, Great Salt, Utah, Salinity of, 302 Lake Basins in France, some, Prof. T. G. Bonney, F.R. S., 341, 414 Lake Basins, Origin of, the Duke of Argyll, F.R.S., 485; J. C. Hawkshaw, 558 Lakeland, a Vertebrate Fauna of, Rev. A. Macpherson, 457 Lamp, Safety, a New Portable Miner's, Prof. Frank Clowes, 596 Landslip at Sandgate, 449; Prof. J. F. Blake, 467; Rev. Dr. Landerer J. J.), the Sizes of Jupiter's Satellites, 473 Langley Prof. S. P.), Energy and Vision, 252; the Hodgkins Langtoft, Thunderstorm, Cloudburst and Flood at, July 3, 1892, J. Lovel, 118 Lankester Prof. E. Ray, F.R.S.), Blind Animals in Caves, 389, 486 Lapparent (Prof. A. de), Sir Archibald Geikie, 217 Laurie (Malcolm), on the Anatomy of the Eurypteridæ, 527 Lawes (Sir John), Rothamsted Agricultural Experiments, Proposed Commemoration of the Jubilee of, 448 Laws and Properties of Matter, R. T. Glazebrook, F.R.S., 580 Laws and Wonders of Nature, a Description of the, Richard A. Gregory, 74 Le Chatelier (A.), the Mixed Character of the Population of Morocco, 61 Lea (A. Sheridan, F.R.S.), the Chemical Basis of the Animal Body, 340 Lea (M. C.), Notes on Silver Chlorides, 189 Leaper (Clement J.), Outlines of Organic Chemistry, 124 Leeds Naturalist Club, 112 Lehmann (Heinrich), Magnetisation of a Radially Slit Iron Ring, 525 Leman, Le: Monographie Limnologique, Prof. F. A. Forel, Prof. T. G. Bonney, F. R. S., 5 Lenard (Herr), Penetration of Thin Metallic Plates by Cathode Lenard (Dr. P.), Experiments on Phosphorescence. Producing Lens, the New Telephotographic, T. R. Dallmeyer, 161 June 1, 1893 Lroy (M. C. J. A.), on Spherical Aberration of the Human Eye; Measurement of Senilism of the Crystalline, 528 Lescœur (M. H.), on the Purification of Arsenical Zinc, 288 Letourneau (Charles), Property: Its Origin and Development, 123 Letts (E. A.), Qualitative Analysis Tables and the Reactions of Certain Organic Substances, Chapman Jones, 361 Leverson (Major), the Frontier Delimitation between British South Africa Company's Territories and Portuguese Possessions, 327 Lewis R. T.), Optical Illusions, 31 Lewy-Dorn (Dr.), the Formation of Sweat, 600 Libraries, Public, Suggestions for Memorial Presentations of Books to, 61 Lichtenthaler (G. W.), Bequest of Natural History Collection to Illinois Wesleyan University by, 613 Lick Observatory, Miss Milicent W. Shinn, 209 Life in France, Statistics of Average, M. Turquan, 255 Light, Diffusion of, Dr. W. E. Sumpner, 190; A. P. Trotter, 191; Dr. Hoffert, 191; Mr. Blakesley, 191; Mr. Addenbrooke, 191; Dr. C. V. Burton, 191 Light, Method of Producing Intense Monochromatic, Dr. Du Bois, 255 Light, the Action upon Certain Micro-organisms of, Herr Buchner, 303 Light, Experiments on the Action of, on Bacillus anthracis, Prof. Marshall Ward, F. R. S., 331, 597 Light and Colour, Sensitiveness of the Eye to, Captain W. de W. Abney, F.R.S., 538 Light, Researches at the Berlin Imperial Physico-Technical Institute on the Siemens Platinum Foil Units as a Standard for the Intensity of a Source of, 615 Lightning Protection, W. H. Preece, F. R. S., on, Prof. Oliver Lightning, Notes on Two Photographs of, taken at Sydney Ob- Limpach (L.), Methoxyamido-I : 3-dimethylbenzene, 165: Some Linden (H.), Waves as a Motive Power, 438 Lindenschmidt (Ludwig), Death and Obituary Notice of, 449 Line of Sight, Motion in the, M. H. Deslandres, 88 Lines of Structure in the Winnebago County Meteorites and in other Meteorites, Prof. H. A. Newton, 370 Linnean Society, 71, 118, 190, 215, 334, 384, 430, 455, 527, 599 Linnean Society, Address of Congratulation to Rev. Leonard Blomefield, 85 Lion-Tiger and Tiger-Lion Hybrids, Dr. V. Ball, F. R.S., 607 Lion Tiger Hybrids, L. F. Harmer, 413 390, Lippmann (G.), Coloured Photographs of the Spectrum, 23 Lippmann's Coloured Photographs, Conditions of Production of, G. Meslin, 157 Liquid, Contrivance for Determining Refractive Index of a, H. Ruoss, 544 Liquids, the Laws of Compressibility of, E. H. Amagat, 48 Liquids, the Thermal Conductivities of, R. Wachsmuth, 350 Liquids, Simple Instrument for Measuring Densities of, R. Hanal, 471 Liquids, on the Common Cause of Surface Tension and Evaporation of, G. Van der Mensbrugghe, 621 Liverpool Derby Museum, Death of Mr. T. J. Moore, late Curator of, 37 Liverpool Geographical Society, 159, 426 Liverpool, University College, Opening of New Victoria Buildings, 155 Living Plants, Gases in, J. G. Arthur, 427 Lizard Superstition of Shuswap Indians, British Columbia, Dr. Geo. Dawson, F. R. S., 184 Lobatcheffsky, Proposed Celebration of Centenary of Birth of, 469 Lockyer (J. Norman, F. R.S.): the Origin of the Year, 32, 228; on the Photographic Spectra of some of the Brighter Stars, 261; the Sacred Nile, 464 Lockyer (W. J.), the New Star in the Constellation of Auriga, 137 Lockyer (William J. S.), La Planète Mars et ses Conditions d'Habitabilité, Camille Flammarion, 553 Locusts at Great Elevations, Sir J. D. Hooker, F.R.S., 581 Lodge (Prof. A.), Williams on the Dimensions of Phy-ical Quantities, 116 Lodge (Prof. Oliver, F.R.S.), Pioneers of Science, 268; the Identity of Energy, 293; Observations of Atmospheric Electricity in America, 392; W. H. Preece, F. R. S., on Lightning Protection 536; on the Differential Equation of Electric Flow, 574; Soot Figures on Ceilings, 608 Loess, the Geology of the Asiatic, Thos. W. Kingsmill, Prof. Loewy (Dr. Ad.), Influence on Respiration of Upper Tracts Lommel (E.), a Simple Explanation of the Hall Effect, 254; Equipotential Lines due to Current flowing through Conducting Sheet fixed photographically, 544 London, Stanford's Map of County of, 40; Appointment of W. Flinders Petrie to Chair of Egyptology at University College, III; the proposed University for London, 200; Technical Education in, Report of the London County Council Committee, 300; London County Council and Technical Education, 348; City and Guilds of London Institute, improvements in Technological Examinations, 612 Loney (S. L.), Mechanics and Hydrostatics for Beginners, 437 Loubat Prizes, the, Columbia College, New York, 496 Love (A. E. H.), on the Vibrations of an Elastic Circular Ring, 383; a Treatise on the Mathematical Theory of Elasticity, Prof. A. G. Greenhill, F. R.S., 529 Love (Mr.), on the Stability of a thin Rod loaded vertically, 526 Lovel (J.), Thunderstorm, Cloudburst, and Flood at Langtoft, July 3, 1892, 118 Lovibond (J. W.), on the Measurement of Direct Light by Means of the Tintometer, 501 Low (Dr.), Higher Education in the United States, 325 Lubbock (Hon. Sir John, F. R.S.), the Beauties of Nature and the Wonders of the World we live in, 28; a Contribution to our Knowledge of Seedlings, Dr. Maxwell T. Masters, F.R.S., 243 Lucas (A. H. S.), an Introduction to the Study of Botany, with a Special Chapter on some Australian Natural Orders, 125 Lucknow, Industrial School opened at, III Lugard (Capt. F. D.), Uganda, 45 Lumière, Poincaré's Théorie Mathématique de la, A. B. Basset, F.R.S., 386 Lumière (MM. Auguste and Louis), Photographic Properties of Cerium Salts, 503 Luminous Earthworms, Rev. Hilderic Friend, 462 Lunar Enlargements, Weenek's, 473 Lunar Volcanoes, Formation of, T. B. Hannay, 7 Lupton (Sydney), Dendritic Forms, 13 Lupton (T. N.), the Florida Phosphate Beds, 325 Lynn (Mr.), Remarkable Comets, 376 McAdie (A.), the Electrification of the Lower Air during Macalister (Prof.), on Egyptian Mummies, 623 MacBride (E. W.), on the Development of the Genital Organs, Macchiati (Signor), the Cultivation of Diatoms, 23 McClintock (Dr. Emory), on the Non-Euclidian Geometry, 286 Macculloch's Geological Map of Scotland, Prof. J. W. Judd, F.R.S., 173 Macdonald (A. C.), the Dairy Industry in Cape Colony, 471 Macdougal (D. T.), Botanical Explorations in Idaho, 206 Macfarlane (A.), Principles of the Algebra of Vectors, 3 Macfarlane (Dr.), Dionæa, 423 Mackenzie (D. F), the Timber of Exotic Conifers, 619 Mackinder (H. J.), the Relation of Geography to History, 304; some Geographical Aspects of British History, 519; the Steppe Belt traversing Asia from East to West, 353: the Chief Lines of Communication between Asia and Europe, MacMahon (Major P. A., F.R.S.), Memoir on the Theory of the Compositions of Numbers, 310; the Group of Thirty Cubes composed by six differently Coloured Squares, 406 McMillan (Conway), the Probable Physiognomy of the Cretaceous Plant Population, 587 Macpherson (Rev. A.), a Vertebrate Fauna of Lakeland, including Cumberland and Westmoreland, with Lancashire North of the Sands, 457 McPherson (Wm.), Racial Dwarfs in the Pyrenees, 294 Madras Meridian Circle Observations, 186 Madras Museum, remarkable Hornets' Nest presented by Lord Wenlock to, 16 Madsen (Herr Victor), Scandinavian Boulders at Cromer, 287 Magic Mirrors, the late Prof. Tennant on, Prof. Silvanus P. Thompson, F.R.S., 79 Magnetism Displacements of Magnet on Mercury under Action of Electric Current, C. Decharme, 48; Dilatation of Iron on Magnetisation, M. Berget, 71; Magnetic Properties of Bodies at Different Temperatures, P. Curie, 96; Magnetic Observations, Washington, 209; Absolute Value of the Magnetic Elements on January 1, 1893, 288; Magnetism and Electricity, R. W. Stewart, 315; Magnetic Permeabilities of a Series of Diamagnetic Bodies, 336; Sun-Spots and Magnetic Perturbations in 1892, M. Ricco, 352; Magnetical and Meteorological Observations made at the Government Observatory, Bombay, 1890, with an Appendix, 379; a Magnetic Screen, Frederick J. Smith, 439; Magnetic Induction in Iron and other Metals, J. A. Ewing, F. R.S., E. Wilson, 460; Magnetic Observatory, Potsdam, Improvement in Registrations of Needle's Variations, Herr Eschenhager, 544; Magnetische Beobachtungen auf der Nordsee angestellt in den Jahren 1884 bis 1886, 1890 und 1891, A. Schück, 555; William Gilbert of Colchester, Physician of London, on the Loadstone and Magnetic Bodies, and on the Great Magnet the Earth. A New Physiology, demonstrated with many Arguments and Experiments, P. Fleury Mottelay, 556 Mair-Rumley (J. G.), Experiments on the Value of the Steam Jacket, 19 Majert (W.), Piperazine, 430 Malapterurus, on the Origin of the Electric Nerves in the Torpedo, Gymnotus, Mormyrus, and, Gustav Fritsch, 271 Mallet (Maurice), the Longest Balloon Ascent on Record, 182 Malta Pleistocene, Discovery of Ursus Arctos in, J. H. Cooke, 62 Malta, Depredations among the recently discovered Phoenician Tombs at, 396 Maltézos (C.), Lenticular Liquid Microglobules and their Conditions of Equilibrium, 71; Conditions of Equilibrium and Formation of Microglobules, 96 Mammalia, the Sense Organs of the Skin, Feathers, and Hairs in, Herr Maurer, 87 Man (E. H.), on Nicobar Pottery, 455 Man and the Glacial Period, Dr. G. Frederick Wright, 148 Man's Place in Nature, Evolution and, Henry Calderwood, 385 Manchester Geographical Society, 159 Manchester Municipal Technical School, Sir Henry E. Roscoe, F.R.S., 201 Manganese, the Volatility of, Prof. Lorenz and Dr. Hensler 375 Mance (Sir Henry), the Teredo and Electric Cables, 450 Manners and Monuments of Prehistoric Peoples, Marquis de Nadaillac, 316 Manurial Trials, Report on, Dr. William Somerville, 556 Maoris, some Reminiscences of, Rev. W. Colenso, F.R.S., 41 Map of County of London, Stanford's, 40 Map of Scotland, Macculloch's Geological, Prof. J. W. Judd, F.R.S., 173 Map of the World on a Uniform Scale, Prof. Penck's Scheme for a, 426 Map-colouring, the Objects of, 566 March (Dr. H. C.). Mythographic Origin of Polynesian Ornament, 239 Marchal (Emile), on a Process of Sterilisation of Albumin Solutions at 100° C., 310 Marckwald (Dr.), new Method of Preparing Glycol Aldehyde, 17 Marey (M.), Swimming Movements of the Ray-fish, 311 Marilaun (Anton Kerner Von), Pflanzenleben, 605 Marine Biology: the Destruction of Immature Fish, Ernest W. L. Holt, 160; Dredging Work at Plymouth, 375; the Rising and Sinking Process in the Radiolaria, Herr Verworn, 397; the Week's Work of the Plymouth Station, 398, 424, 451, 472, 497, 518, 546, 565, 589, 616; Port Erin (Isle of Man) Station, 515 Marine Fauna, Proposed Handbook to the British, Prof. W. A. Herdman, F. R.S., 231, 293; Prof. D'Arcy W. Thompson, 269; W. Garstang, 293 Marine Laboratories in the United States, Prof. J. P. Campbell, 66 Marine Shells of South Africa, G. B. Sowerby, 27 Marine Zoological Station at Trieste, the, 450 Mars, the Planet, Camille Flammarion, William J. S. Lockyer, Marshall (W.), the Resolution of Methoxysuccinic Acid into its Martin (Ern.), Physiological Study of Opium Smoke, 168 Martin (Horace), Castorologia; or, the History and Traditions of the Canadian Beaver, 224 Marvin (Prof. C. F.), Sunshine Recorders, 261 Mascart (M.) on the Diurnal Variations of Gravitation, 360 Massee (George), British Fungus-Flora, 26 Masters (Dr. Maxwell T., F.R.S.), a Contribution to our Knowledge of Seedlings, Sir John Lubbock, F.R.S., 243; List of Conifers and Texads, 619 Mathematics: Principles of the Algebra of Vectors, A. Macfarlane, 3; Vector Analysis, Prof. P. G. Tait, 225; the Algebra of Co-planar Vectors and Trigonometry, R. Baldwin. Hayward, F.R.S., 266; Prof. C. G. Knott on Recent Innovations in Vector Theory, 287, 590; Quaternions and the Algebra of Vectors, Prof. J. Willard Gibbs, 463; Vectors versus Quaternions, Oliver Heaviside, F.R.S., 533; Printing Mathematics, W. Cassie, 8; Dr. M. J. Jackson, 227; Bulletin of the New York Mathematical Society, 23, 428; Mathzmatical Society, 71, 214, 382, 406, 526; Certain General Limitations affecting Hyper-Magic Squares, S. Roberts, FR.S., 71; Note on Secondary Tucker Circles, 71; Quaternions, Alex. McAulay, 151; Cauchy's Condensaticn Test for Convergency of Series, Prof. M. J. M. Hill, 214 on the Non-Euclidian Geometry, Dr. Emory McClintock, 286; Theory of Numbers, G. B. Mathews, 289; Memoir on the Theory of the Compositions of Numbers, Mathews (G. B.), Theory of Numbers, 289 Mercelli (G.), Stromboli, 453 Mercurial Air-Pumps, Automatic, Dr. August Raps, 369 Meridian Circle Observations, Madras, 186 Meslin (G.), Conditions of Production of Lippmann's Coloured Mesnard (E.), Mode of Production of Perfume in Flowers, 120; Metallurgy: Note on the Colours of the Alkali Metals, G. S. Metazoan Development, on a Supposed Law of, J. Beard, 79 ; Mathey (Edward, F.S.A.), Further Researches in Connection Meteorology: The Weather Week by Week, 15, 38, 60, 85, with the Metallurgy of Bismuth, 358 Matriculation Chemistry, Temple Orme, 99 Matthews (William), the Southampton Water-softening Plant, Maurer (Herr), the sense Organs of the Skin, Feathers, and Maw (M. H.), Lunar Crater, 31 Mawley (E.), Report on the Phenological Observations for 1892, 430 Maxwell (C. F.), Remarkable Meteor in Texas, 279 Maycock (W. Perren), Electric Lighting and Power Distribu- Mayer (Alfred Goldsborough), the Radiation and Absorption of Measure of the Imagination, Francis Galton, F.R.S., 319 Measures of Stars about B Cygni, Rutherfurd, Prof. Harold Mechanics: Elementary Manual on Applied Mechanics, Prof. Medieval Lore; an Epitome of the Science, Geography, Animal and Plant Folk-Lore and Myth of the Middle Ages, 388 Medical Education at Oxford, Lord Salisbury, 449 Medical Microscopy, Frank J. Wethered, Dr. A. H. Tubby, 51 Medical Science, Bibliographia Medica Italiana, Prof. P. Giacosa, 606 Medical Society, Oxford, Inaugural Address by Sir James Paget, Medical Student, Biology and the, H. J. Campbell, 530 Mee (Arthur), Observational Astronomy, 437 Melbourne Observatory, 498 Meldola (Prof. R.,.F.R.S.), Arborescent Frost Patterns, 125 Mendenhall (T. C.): Uses of Planes and Knife Edges in Pen- Mensbrugghe (G. Van der), on the Common Cause of Surface Mentone, Prehistoric Interments of the Bahi Rossi Caves near, 111, 130, 155, 183, 206, 233, 253, 278, 300, 323, 348, 373, |