390 



NATURE 



[May 26. 1910 



H. Coutiftro : Cray-fish of the genus Saron with male 

 dimorphs. — L. Nftgrre and J. Bridr^ : The nature of the 

 parasite of epizootic lymphangitis. — G. Seliber : The 

 determination of the volatile acids in the products of 

 fermentation of some micro-organisms according to the 

 method of Duclaux. — L. De Launay : The mean atomic 

 weight of the silicated earth's crust. — Jean Boussac : The 

 distribution of the levels and fades in the so-called autoch- 

 tone (Nummulitic) of eastern Switzerland. — Maurice 

 Filliozat : The chalk of Blois. — Louis Gentil : The 

 ancient orogenic movements in the Haut-Atlas of Morocco. 



DIARY OF SOCIETIES. 



THURSDAY, May 26. 



Royal Society, at 4.30. — Croonian Lecture : Alterations of the Develop- 

 ment and Forms of Plants as a Result of Environment : Prof. G. Klebs. 



Royal Institution, at 3. — The Constitution and Internal Structure of 

 Alloys : Dr. W. Rosenhain. 



Institution of Electrical Engineers, at 8. 



Royal Society of Arts, at 4.30. — The People of Burma : Sir Richard 

 Carnac Temple, Bart. 



FRIDAY, May 27. 



Royal Institution, at g. — The Forthcoming Antarctic Expedition : 

 Capt. R. F. Scott, R.N. 



Royal Institution, at 3. — The World of Plants before the Appearance 

 of Flowers : Dr. D. H. Scott, F.R.S. 



Physical Society, at 5. — On an Oscillation Detector actuated solely by 

 Temperature Variation of Resistance : Dr. W. H. Eccles. — Exhibition of 

 a Resonance Transformer : A Eagle. — The Limitations of the Weston 

 Cell as a Standard of Electromotive Force : Dr. S. W. J. Smith. 



Institution of Mechanical Engineers, at 8. — Adjourned discussion 

 upon Mr. S. N. Brayshaw's Paper on A Research on the Hardening of 

 Carbon and Low-tungsten Tool-steels : Prof. J. O. Arnold. — Comparison 

 of the Tensile, Impact-tensile, and Repeated-bending Methods of Testing 

 Steel : B. Blount, W. G. Kirlcaldy, and Capt. H. Riall Sankey. 



MONDAY, May 30. 

 Royal Institution, at 3. — Earth-tides : Prof. A. E. H. Love, F.R.S. 



TUESDAY, May 31. 



Royal Institution, at 3. — Heredity in Tudor and Stuart Portraits : 

 Charles J. Holmes. 



Faraday Society, at 8. — Some Practical Experience of the Sherardising 

 Process : J. W. Hinchley. — Note on the Composition of Eutectic 

 Mixtures : Dr. C. H. Desch. — Relations between Critical Temperature, 

 Boiling-point, and Expansion Coefficient of Phosphorus Pentachloride : 

 E. B. R. Prideaux. — Thermic Reactions in Vacuo. Parts I., II., and 

 III. : F. E. Weston and H. Russell Ellis. 



Royal Anthropological Institute, at 8.15. — An Anthropological 

 Expedition to the Northern British Solomon Islands : Dr. R. Thurnwald. 



WEDNESDAY, June i. 



Royal Institution, at 3. — The Constitution and Internal Structure of 

 Alloys : Dr. W. Rosenhain. 



Royal Society of Arts, at 8. — The Restoration and Discoveries at 

 the Guildhall, London : S. Perks. 



Society of Public Analysts, at 8. — The Composition of Malt Vinegar : 

 E. Russell and T. R. Hodgson.— Some Analyses of Ghee : E. R. Bolton 

 and C. Revis.— A Short Method for Detecting and Estimating Coconut 

 Oil in Butter and Margarine : H. S. Shrewsbury and A. W. Knapp.— 

 The Analysis of Ferrocyanides : Dr. H. G. Colman. — Some Unusual 

 Pathogenic Bacteria in Water : W. Partridge.— The Estimation of Small 

 Quantities of Essential Oils in Spices : J. A. Brown.— An Investigation 

 of Pozzi-Escot's Method for the Estimation of Nitrates : E. Cahen. 



Entomological Society, at 8. — Notes on the Scoliidae, and New 

 Fossorial Hymenoptera from Australia : R. E. Turner. — On the Position 

 of the Rhopalosomidae, with Description of a Second Soecies : C. Morley. 

 — Descriptions of Micro- lepidoptera from the Malayan Region : E. 

 Meyrick, F.R.S. 



THURSDAY, June 2. 



Royal Society, at 4.30. — Probable Papers : The Influence of Bacterial 

 Endotoxins on Phagocytosis (Preliminary Report) : Leonard S. Dudgeon, 

 P. N. Panton, and H. A. F. Wilson.— The Origin of Osmotic Effects. 

 III. The Function of Hormones in Stimulating Enzymic Change in 

 Relation to Narcosis and the Phenomena of Degenerative and Regenera- 

 tive Change in Living Structuies : Prof. H. E. Armstrong, F.R.S., and 

 E. Frankland Armstrong. — On the Direction of Motion of an Electron 

 ejected from an Atom by Ultra-violet Light : Dr. R. D. Kleeman.— On 

 Scandium. Part II. : Sir William Crookes, For.Sec.R.S.— The Flow of 

 Water in Curved Pipes : Prof. J. Eustice. 



Royal Institution, at 3. — Malaria : Major Ronald Ross, F.R.S. 



Institution of Mining Engineers, at 11 a.m. — Presidential Address : Dr. 

 J. B. Simpson. — A Storage-battery Extension to a Three-phase Colliery 

 Power-plant : W. Maurice. — On Measurements of the Downward Increase 

 of Temperature in Bore-holes, their Technics and their Practical Im- 

 portance for Geological Prognosis : Prof. J. Koenigsberger and Dr. Max 

 Miihlberg. 

 Linnean Society, at 8.— On the Flora of Gazaland : Dr. A. B. Rendle, 



F.R.S., and others. 

 RSntgen Society, at 8.15. — Practical Observations on Every-day X-Ray 

 and Electrical Work : Filtration of Rays, Measurement of Rays, Rapid 



Stereoscopic Method : Dr. Howard Pirie. — Recent Improvements in 

 Radiographic Technique: Dr. R. Knox. 



FRIDAY, June 3. 

 Royal Institution, at ^.— The World of Plants before the Appearance 



of Flowers: Dr. D. H. Scott, F.R.S. 

 Royal Institution, at 9. — Renaissance Monuments in the Roman 



Churches, and their Authors : Sir Rennell Rodd, G.C.V.O., K.C.M.G. 

 Institution of Mining Engineers, at 10 a.m. — Experiments illustrative 



of the Imflammability of Mixtures of Coal-dust and Air : Prof. P. Phillirs 



Bedson.— Testing for Fire-damp : Prof. J. Cadman. — Some Memoranda 



concerning Coal-dust : H. W. G. Halbaum. 



SATURDAY, June 4. 

 RovAL Institution, at 3. — Electric Heating and Pyrometry : Prof. J. A. 

 Fleming, F.R.S. 



CONTENTS. PAGE 



The Last Days of Charles II 361 



Mechanical Literature of the Nineteenth Century 361 



Shell-fish Industries. ByJ. J. . . 362 



The Fauna of Ceylon. By R. L 3^3 



The Philosophy of Experience 3^3 



Some German Mathematical Treatises. By H. L. 364 

 Our Book Shelf:— 



Mennell : " An Introduction to Petrology." — 



G. A. J. C 365 



•' Map of Eastern Turkey-in-Asia, Syria, and West 



Persia."— E. H. H 3^5 



Williams: "The Anatomy of the Common Squid, 



Loligo Pealii, Lesueur " 3^6 



Bryce : " The Sie^e and Conquest of the North Pole" 366 



Maurain : " Les Etats physiques de la Matiere " . . 366 

 Knox : " Aids to Microscopic Diagnosis (Bacterial 



and Parasitic Diseases)."— Prof. R. T. Hewlett . 367 

 Edwardes : " Lift-luck on Southern Roads " . . . . 367 

 Millspaugh : " Praenunciae Bahamensis. II., Contri- 

 butions to a Flora of the Bahamian Archipelago " . 367 

 Letters to the Editor : — 



Halley's Comet and Magnetic and Electrical Pheno- 

 mena.— Dr. C. Chree, F.R.S 3^7 



The Magic Square of Sixteen Cells. A New and 



Completely General Formula.— Ernest Bergholt 368 

 Magnetic Deflection of /3 Rays.— Otto von Baeyer 



and Dr. Otto Hahn 3^9 



Peripahis paptiensis.— Prof . A. Sedgwick, F.R.S. . 369 

 The Bibliography of the Biology of the European 



Seas.— S. Pace 37° 



An Improved Weight Dilatometer. {Illustrated.)— 



A. V. C. Fenby 37° 



The International Association of Academies. By 



Prof. Arthur Schuster, F.R.S 37° 



Halley's Observations on Halley's Comet, 1682. 



{Illustrated.) By A. S. Eddington 372 



Some New Ornithological Works. {Illustrated.) . 373 

 Portuguese Zambezia. (Illustrated.) By Sir H. H. 



Johnston, G.C.M.G., K.C.B 376 



Pellagra and its Cause 37^ 



Notes 378 



Our Astronomical Column : — 



Total Solar Eclipse of May 9 3^3 



Solar Activity 383 



Comet 1910a 383 



The Problem of the Resisting Medium 383 



The Calcium Bands at \ 6382 and A 6389 383 



Stars with Variable Radial Velocities 383 



Occultation of Mars by the Moon on April 13 ... 383 



Observations of Halley's Comet. (Illustrated.) . . 384 

 Halley and his Comet. By Prof. H. H. Turner, 



F.R.S 387 



University and Educational Intelligence 388 



Societies and Academies 389 



Diary of Societies 39° 



NO. 2 1 17, VOL'. 82,'] 



