i8o 



NATURE 



[December 9, 1909 



Echidna, with an Enumeration of the Fihres in the Cranial Nerves : 

 Dr. E. Schuster.— Cortical Lamination and Localisation in the Brain of 

 the Marmoset: Dr. F. W. Mott, F.R.S., Dr. E. Schuster, and Prof. 

 W. D. H.alliburton. F.R.S.— The Caudal Fin of Fishes (Preliminary 

 Paper): R. IL Wliitehouse. — Some Experiments with ihe Venom of 

 Causus rhombeatus'. H. E. Arbucklc. — On the Comp.arative Action of 

 Stovainc .nnd Cocaine as measured by their Direct EITects upon the 

 Conlractivilv of Isolated Muscle: Dr. V. H. Veley, F.R.S. , and Dr. 

 A. D. W.iMer, F.R.S.— 6V<.M/«a f,alf,alh .as a Carrier of TryJ,aHosoii,a 

 ■T'ivn.r in Uganda: Colonel Sir David Bruce, C.B., F.R.S., Captains 

 A. E. Hamerlon .and H. R. Bateman, l-!..-\.M.C., and Captain F. P. 

 Mackie, LM S.— A Critical Study of Spectr.al .Series. Part 1., The 

 Alkalies, H and He: Prof. W. M. Hicks, F.R.S.— On the Distribution 

 of the Rontgfn Rays from a Focus Bulb : G. W. C. Kaye.— On the 

 Nature of the lonisation of a Molecule by an a Particle : R. D. 

 KIceman.— Conduction of Heat through Rarefied Gases : F. Soddy and 

 A. L Berry.— Harmonic Tidal Constants for Certain Chinese and New 

 Zealand Ports : T. WriRht.— The Photogr.aphic Action of the a Particles 

 emitted from Radio-active Substances : S. Kinoshita. 



Mathrmatical Society, at 5.30.— Exhibition of an Instrument for Solv- 

 ing Cubic Equations : T. H. Blakesley.— The Connection between the 

 Theories of the Sing.darities of Surfaces and Double Refraction : A. B. 

 li.asset.— On the Representation of a Group of Finite Ord-r as a Group 

 of Line.ar Substitutions with Rational CoelTicient.s : Prof W. Burnside.— 

 The Eliminant of the Equations of Four Quadric Surfaces : A. L. Dixon. 



Institution op Ei.kctbical Engineers, at 8.— Notes on Methods and 

 Pr.ictice in the Germ.an Electrical Industry: L. I. Lepine and A. R. 

 Stelling. 



Royal Society OF Arts, at 4.30.— The Ptinjab : Sir lames Wilson, 

 K.C.S.I. 



FRIDAY, Dkcemiier 10. 

 Royal Astronomical Society, at 5.— On certain Families of Periodic 

 Orbits: .Sir G. H. Darwin. -Description of a Field Method for the 

 Determination of I alitudc with a Theodolite : N. S. Bartlett.— Southern 

 Double Star Measures: G. D. Hirst. -Note on cerlain Coefficients 

 appearing in the Algebraical Development of the Perturbative Function, 

 .Second Paper : R. T. A. Inncs.— On the Modern Theory of Aberration : 

 II. C. Plummer. — ProbahU leafier: On the Diagrammatic Representation 

 of Proper Motions : H. H.Turner. 



Malacoi.ogical Society, at 8.— Note on the very young Stage of the 

 • Genus Humphreyia: G. A. Smith.— A Further Note on the Anatomical 

 Differences between the Genera Cypraa and Trivia : H. O. N. Shaw.— 

 A New Mexican Genus of Pleuroceratida; : Prof. H. A. Pilsbry. --Notes 

 on a Collection of Terrestrial Land Shells from Angola, with Description 

 of New Species : H. B. Preston.— Notes on the Genus Libera : J. H. 

 Ponsonby. 



MONPAV, DliCKBlBER 13. 



Royal Society ok Arts, at 8.— Aeronautics : C. C. Turner. 



Royal Geographical Society, at 8.30. — Exploring Journeys in Turkey- 

 in-Asia : Capt. Bertram Dickson. 



TUESDAY, Drcf.mdf.r 14. 



Zoological Society, at B.30.— (i) On Change of Colour in a Specimen of 

 Mcllivora ratel living in the Society's Gardens ; (2) A Comparative 

 Examination of Three Living Specimens of I''elis tigris sontfnka, with 

 Notes on an old Javan Male : Dr. F. D. Welch.— The Nesting-habits 

 of /'hyllamedusa situvagii : Dr. W. E. Agar— (i) Marine Fauna from 

 the Mergui Archipelago, Lower Burma, collecied by I.as. J. Simpson 

 and R. N. Rudmose- Brown : Madrepor.aria ; (2) Marine "Fauna from the 

 Kerimba Archipelago, Portuguese East Africa, collected by Jas. J. 

 Simpson and R. N. Rudmosc- Brown : M.a.lreporaria : Ruth M. Harrison 

 and Margaret Poole.— <i) Some Notes upon l!oa iKcidentnlh and Itoa 

 {Pelo/rhitus) fiiaiiatiascarii-Hsis \ (a) Notes upon the .\natomy of Monkeys 

 of the Genus Pithccia : F. E. Bcddard, F.R.S.— On the Ophidian Genus 

 Gr.ayia: G. A. lioulenger, F.R.S. 



Institution op Civil Engineers, at 8.— Railway SignaUing in India: 

 C. W. Hodson. 



Royal Antmrotological Institute, at 8.15.— Notes on a Recent Ethno- 

 graphical Expedition to the Congo : E. Torday. 



WEDNESDAY, December 15. 



RovAL Society of Arts, at 8.— The Diamond Fields of Brazil : H. 

 Pearson. 



Royal Meteorological Society, at 7.30.— The Variations of Cuirents 

 of Air indicated by .Simultaneous Records of the Direction and Velocity 

 of the Wind: Dr. W. N. Shaw.— (1) South American Rainfall Types; 

 (2) The Study of Phenomenal Climatology : W. G. Reed. 



Geological Society, at 8.— The Metallogeny of the British Isles : 

 A. Monciiefl' Finlayson.— The Skiddaw Granite and its Mctamorphism : 

 R. H. Rastall.— The Geoloi-ical Structure of Southern Rhodesia : F. P. 



Me 



ell. 



Royal Microscoimcal Society, at 8.— On the Measurement of Grayson's 

 Ten B.and Plate : A. A. C. E. Merlin.- Convenient Form of Stand for 

 Use as a Micro-colorimeter and with Micro-spectroscope : Dr. D. 

 Marshall Ewell. -On the Life-history of the Hessian Fly, with Notes 

 on the Tenby Wheat Midge : F. Enock. 



THURSDAY, Decemuer 16. 



Insi-itu-iion of Electrical Engineers, at 8.— Some Quantitative 



Me;»surements in Connection with Radio-telegraphy : Dr. J. A. Fleming, 



F.R.S —Efficiency of Short Sp.irk Methods of Gener.ating Electrical 



Oscillations : Dr. W. H. Eccles and A. J. Makower. 



NO. 2093, VOL. 82] 



LiNNEAN Society, at 8.— Report on the Crustacea Isopoda and Tanaidacea 

 collected by Mr. C. Crossland in the Sudanese Red Sea: Rev. T. R. R. 

 Stebbing, F.R.S.— Pycnogonida from the Red Sea and Indian f)cean 

 collected by Mr. C. Crossland : Piof. G. H. Carpenter.— On a Collection 

 of Blaltida: preserved in Amber from Prussia: R. Shelford.— Isopoda 

 from the Indian Ocean and British East Africa : Rev. T. R. R. Stebbing, 

 F.R.S.— The Bryoioa from Collections made by Mr. C. Crossland, 

 Part II., Cyclostomata, Ctenostomata, Endoprocta ; A. W. Waters. 



Institution of Mining and Metallurgy, at 8. 



FRIDAY, December 17. 



Institution of Mechanical Engineers, at 8.— Mild-steel Tubes in 

 Compression and under Combined Stress : W. Mason. — Compound Stress 

 Experiments : C. A. M. Smith. 



Institution of Civil Engineers, at 8.— The Foundation and Construc- 

 tion of Dock Walls : H. T. Tudsbery. 



CONTENTS. PAGE 



Plant Records of the Rocks. I'.y Prof. A. C. 



Seward, F.R.S 151 



Piscine Morphology. By W. E. A 152 



French Sylviculture. Hy Prof. W. R. Fisher ... 153 



Practical Chemistry 153 



Scientific Method in Geography 154 



Our Book Shelf;— 



Butler: " Carburetlors, Vaporisers, and Distributing 



Valves used in Internal Combustion Engines'' . . 155 



Taggart : " Cotton Spinning Calculations" 155 



"Proceedings of the Aristotelian Society." — Prof. 



A. E. Taylor 155 



Kirkaldy and Drunimond : "An Introduction to the 



Study of Biology " 156 



Letters to the Editor : — 



The End of the /I'twj,'/,.— Toyozi Noda 156 



The Mainlenance of Forced Oscillations of a New 



Type.— C. V. Raman 156 



Absorption-bands in Colourless Liquids. — Prof. 



W. N. Hartley, F.R.S 157 



The Inlieiilance of Acquired Characters. — Prof. H. 



Charlton Bastian, F.R.S 157 



Luminous Night Clouds and Aurora .Spectrum. — 



Chailes P. Butler 157 



Coloration of Birds' Eggs. — R.L.Leslie 157 



The Terminal \'clocity of Fall of Small Spheres in 



Air. — Prof. John Zeleny and L. W. McKeehan 158 



The Prophylaxis of Tropical Diseases. (llltisli\ilcd.) 158 



Industrial Education, liy J. Wilson 160 



Nilometry 161 



Notes 161 



Our Astronomical Column : — 



Discovery of a New Comet, igogc 165 



Ilalley's Comet 165 



Absorption of Light in Space 166 



Copernicus Anticipated 166 



Star Almanac and Calendar for 1910 166 



Magnetic Expeditions 166 



Ethnography in the Philippine Islands. {//liisli-ale<l.) 166 



The Development of Evolutionary Ideas 167 



Researches in Radio-Telegraphy. II. {Illustrated.) 



By Piof. J. A. Fleming, F.R.S 168 



Illuminating Engineering. By Prof. Silvanus P. 



Thompson, F.R.S 172 



University and Educational Intelligence 174 



Societies and Academies 175 



Diary of Societies 179 



