624 



NA TURE 



[April 30, 1908 



application of the antiseptic methods of Lister. These 

 results were obtained without the use of an aseptic 

 operating room. — The structure of the trachean network 

 of the excretory canals of the kidneys of MachiUs 

 maritima : L. Bruntz. — The -Senonian and the Eocene of 

 the north edge of the Moroccan Atlas : A. Brives. — ;\ fan- 

 shaped apparatus of Celorhinus found in the fossil state 

 in the Antwerp Pliocene ; Maurice Leriche. — The direct 

 measurement of the vertical component of terrestrial 

 magnetism. Application to the exploration of the chain 

 of Puvs : B. Brunhes and P. David. 



DIARY OF SOCIETIES. 



THURSDAV, Apkii. 30. 



Royal Society, at 4.30.-011 Sc.indium : Sir William Crookes, F.R.S.— 

 Note on the Representation of the Earth's Surface by Means of Spherical 

 Harmonics of the First Three Degrees: Prof. A. E. H. Love, F.R.S.— 

 On the Hysteresis Loss and other Properties of Iron .Alloys under very 

 small Magnetic Forces : Prof. E. Wil-on, V. H. Winson, and G. F. G'Dell. 

 — The Relation between the Crystalline Form and the Chemical Consti- 

 tution of the Picryl Derivatives: G. Jerusalem and Prof. W. J. Pope, 

 F.R.S.— The Condensation of Certain Organic Vapours : T. H. Laby.— 

 A Photographic Dettrmination of the Elements of the Orbits of Jupiter's 

 Satellites : B. Coukson. 



RovAL iNSTn UTtON, at 3.— MendcHan Heredity : William Eateson, F.R.S. 



Royal Society of Arts, at 4.30. — Reminiscences of Indian Life: Lord 

 Lamington, G.C.M.G., G.C.I. E. 



Mathematical Socieiv, at 5.30. — On a General Convergence Theorem, 

 and the Theory of the Representation of a Function by Series of Normal 

 Functions: Dr. E. W. Hobson.-On the Multiplic.-ition of .Series: 

 G. H. Hardy.— On {r-lntegration and DifTerential Equations: F. H. 

 Jackson. — On the Uoper and Lower Functions of a Sequence of Con- 

 tinuous Functions : Dr. W. H. Young.— (i) On Mersenne's Numbers ; 

 (2) On Quartans with numerous Quartan Factors: l,t.-Col. A. Cunning- 

 ham. — The Relation between the Convergence of Series and Integrals: 

 T.J. I'A. Bromwich — Porisms: H. Bateman.— The Influence of Viscosity 

 on Wave Motion : W. J. Harrison.— On the Ordering of the Terms of 

 Polars and Transvectants : I.. Isserlis. 



FRIDAY, May i. 



Royal Institution, at 9.— The Scientific Work of Lord Kelvin : Prof. 

 Joseph Larmor, Sec. R.S. 



Geologists' Association, at 8. — Structural Analogies between .'\lloys and 

 Igneous Rocks : W. G. Fearnsides. 



SATURDAY, M.-\Y2. 



Royal In.stitution, at 3.— Chile and the Chilians: G. F. Scott Elliot. 

 MONO A Y, May 4. 



Aristotelian Society, at 8. — The Methodological Postulates of Psycho- 

 logy : Dr. T. Percy Nunn. 



Society of Chemical Industry, at 8.— The Manufacture of Sodium 

 Nitrite: Dr. G. T. Morgan.— On some Simple and Mixed Esters of 

 Cellulose. The .Mkaline Decomposition of Nitro Derivatives of Cellulose 

 and other Carbohydrates : Dr. W. Smith, junr.— The Mechanism of 

 Filtration : E. Hatschek. — Metanil Yellow ; its Use as a Selective 

 Indicator : E. Linder.— The Conversion of Oleic Acid into Stearic Acid : 

 Dr. J. Lewkowitsch. 



Institute of Actuaries, at 5.- The Select and Ultimate Method of 

 Valuation : M. M. Dawson. 



TUESDA Y, May 5. 

 Royal Institution, at 3. — The Development of the Modern Turbine and 



its Application : Gerald Stoney. 

 ~ I'OLOGICAI. Institute, at 8.15. —Report on the Hythe 



Cn 



t : F. G. Parsons. 



WEDNESDA Y, May 6. 



Royal Society of Arts, at 8.— The Gramophone, and the Mechanical 

 Recording and Reproduction of Musical Sounds : Lovell N. Reddie. 



Geoi.ogicai. Society, at 8.— Solution-Valleys in the Glyme Area (Oxford- 

 shire) : Rev. E. C. Spicer.— On the Stratigraphy and Structure of the 

 Tarnthal Mass (Tyrol): Dr. A. P. Young ; wilh a Note on Two Cephalo- 

 pods, collected by Dr. A, P. Young on the Tarnthal Kupje (Tyrol) : G. C. 

 Crick. 



Entomological Society, at 8. 



Society of Public .Analysts, at 8.— The Examination of Oil of Tur- 

 pentine and Turpentine Substitutes : J. H. Coste.— The Estimation of 

 Ferrocyanide in Crude Commercial Products : Dr. H. G. Ci>lman. — 

 Studies in Steam Distillation. Part iii.. The Fatty Acids : H. Droop 

 Richmond.— A New Method for Milk Testing, and some Remarks on the 

 Sydney Supply ; W. M. Doheily." 



THURSDA Y, May 7. 



Royal Society, at 4.— Election of Fellows. — At 4.30.— Helium and Radio- 

 activity in Rare and Common Minerals: Hon. R. J. Strutt, F.R.S —The 

 Action of Resin and Allied Bodies on a Photographic Plate in the Dark : 

 Dr. W. J. Russell, F.R.S.— A Tantalum Wave-detector, and its Applica- 

 tion in Wireless Telegraphy : L. H. Walter.— Seleno-aluminiuin Bridges : 

 Prof. G. M. Minchin, F.R.S. 



Royal Institution, at 3.— Mendelian Heredity: William Bateson, F.R.S. 



Chemical Society, at S.30. — The Interaction of Diazonium .Salts with 

 Mono- and Di-bydric Phenols and with Naiihthols : K. J. P. Orton and 

 R. W. Everatt.— The Condensation of Benzoin with Methyl Alcohol : 

 J. C. Irvine and D. McNicoll.— The Mutual Solubility of a.Methyl- 

 piperidm and Water : O. Flaschner and B. MacEwen.— The Melting 

 Points of the Anilides, >-Toluidides, and o-Naphthylamides of the 

 Normal Fatty Acids: P. W. Robertson —The Refraction and Dis- 



persion of Triazo-coTipounds : J. C. Philip. -The Dissociation Con- 

 stants of Tiiazoacetic and a-Triazopropionic Acids: J. C. Philip.- 

 The Absorption Spectrum of Camphor: W. N. Hartley.— The Viscosity 

 of Solutions : C. E. Fawsitt.— The Action of Fused Potassium Hydroxide 

 and of Hydrogen Peroxide on Cholesterol, Preliminary Note : R. H. 

 Pickard and J. Yates.— The Fermentation of Manno^e and Fructose by 

 Yeast Juice, Preliminary Communication : A. Harden and W. J. Youni;. 

 —The Volumetric Estimation of Silver: W. R. Lang and J. O. Wood- 

 house.— The Constiluents of Olive Leaves : F. B. Power and F. Tulin.— 

 The Constituents of Olive Btrk : F. B. Po.ver and F. Turin. 



LiNNEAN Society, at 8. — Colony-formation as a Factor in Organic Evolu- 

 tion : H. M. Bernard. — Antipathana from the Voyage of H.M.S. Scalar/: : 

 C. Forster-Cnoper.- A List of the Fresh-water Fishes, Batrachians, and 

 Reptiles obtained by Mr. J. Stanley Gardiner's Expedition to the Indian 

 Ocean : G. A. Boultnger, F.R.S. — A Cinematographic Representation of 

 the Movements of Pe.ipatus and other Invertebrate Animals : F. Martin 

 Duncan. 



Civil and Mechanical Engineers' Society, at 8.— Abbreviated Formula.- 

 for Structural Engineers : E. Fiander Etchells. 



Institution of Electrical Engineers, at 8. — The Manufacture of Elec- 

 trical Condensers : G. F. Mansbridge. 



FRIDA r. May 8. 

 t 9. — Ice and Its Natural History : J. V. Buchanan. 



Royal Institut 

 F.K.S. 



Royal Astronomical Society, at 5. 



Physical Society, at 8.— A Modified Theory of Gravitation : Dr. C. V. 

 Burton. — An Examination of the Formulee for the Grading of Q^bles : 

 C. S. Whitehead. — llluslrations of Geometrical Optics : R, M. .\rcher. 



SATURDAY. U.\i 9. 

 Royal Institution, at 3.— Chile and the Chilians : G. F. Scott Elliot. 



CONTENTS. PAGE 



Ancient Britain 601 



Linear Algebra. By G. B. M 603 



Medical Physics. By J. H. R 604 



Our Book Shelf : — 



Hue : " Musee osteologique ; Etude de la Faune 



Quaternaire, Osteometriedes Mammiferes. " — R. L. 604 

 Mitton : " The Children's Book of Stars."— W. E. R. 605 



Noble : " Cradle Tales of Hinduism " 605 



Rawitz : " Lehrhuch der mikroskopischen Technik." — 



Prof. R. T. Hewlett 605 



Letters to the Editor: — 



The Presence of Water Vapour in the Atmosphere of 



Mars. — Prof. Percival Lowell ..... 606 



The Condensation of Helium. (Willi Diagram.) Dr. 



Morris W. Travers, F.R.S 606 



The Radio-activity of Ordinary Metals: the Pene- 

 trating Radiation from the Earth. — Prof J. C. 



McLennan 607 



The Theory of Dispersion and Spectrum Series. — 



Norman R. Campbell . . 607 



The Oligoch.vtous Fauna of Lake Birket el Qurun 

 and Lake Nyassa. By Frank E. Beddard, F.R.S. 608 

 The Forthcoming Dublin Meeting of the British 



Association. By E. E. F 608 



The Science Court of the Franco-British Exhibition. 



(intli P/an.) 609 



The Scientific Study of Starvation. By W. D. H. . 610 



Recent Progress of the Metric System 611 



Notes 612 



Our Astronomical Column: — 



Astronomical Occurrences in May 616 



A New Star-Finder . 616 



Saturn's Rings 616 



The Systematic Motions of the Stars 616 



Determination of the Errors of the Paris Observatory 



Rt^seaux 617 



The Herschels' Nebula; 617 



Horizon and Prime-vertical Curves for Latitudes + 30° 



to -f 60° 6 1 7 



Educational Leakage. (H'i//i Diagram.) 617 



The Scientific Results of the Voyage of the S.Y. 



"Scotia." (I!!iistraU-d.) 61S 



The Meteors of Halley's Comet. By W. F. 



Denning 619 



Some Unsolved Problems in Metal-Mining. By 



Prof. Henry Louis 619 



Science and Industry 621 



University and Educational Intelligence 621 



Societies and Academies 623 



Diary of Societies . . 624 



NO. 2009, AOL, 



//J 



