420 



NATURE 



[June 2, 1910 



August. — International Congress of PhotoRrapSy. Brussels. Corre- 

 sDondent for United Kingdom : Mr. Chapman Jones, 1 1 Eaton Rise, 

 Ealinir, W. 



August 2-7. — International Congress on School Hygiene. Paris. General 

 5?ecretary; Dr. Dufestel, 10 Boulevard Magenta. Paris. Hon. Secretaries 

 for Great Britain : Royal Sanitary Institute, 90 Buckingham Palace Road, 

 S.W. 



Aur.usT T5-20. — International Zoological Congress. Graz (Austria). 

 President : Prof. Ludwig von Graff. Address for inquiries : Prasidium 

 d.:s VIII. Internationalen Zoologen-Kongresses, Universitatsplatz 2, Graz 

 (Osterreich). 



August 18-26. — International Geological Congress. Stockholm. General 

 Secretary : Prof. J. G. Andersson, Stockholm 3. 



August 29 to September 6. — International Union for Cooperation in 

 Solar Research. Mount Wilson Solar Observatory. British Member of 

 Executive Committee to whom inquiries should be addressed: Prof. A. 

 Schuster, F.R.S.. Victoria Park, Manchester. 



August 31 to September 7. — British Association. Sheffield. President : 

 Prof. T. G. Bonnev. F. R. S. Address for inquiries : General Secretaries, 

 Burlington House, W. 



September 6-8. — International Congress of Radiology and Electricity. 

 Brussels. General Secretary : r>r. T. Daniel, i rue de la Pr^vOte, Brussels. 

 Correspondents for United Kingdom : Prof. Rutherford and Dr. W. 

 Makower. University of Manchester, and Dr. \V. Deane Butcher, Holyrood, 

 Ealing, W. 



September 18-24. — German Association of Naturalists and Physicians. 

 Konigsberg. Secretaries : Prof. Lichtheim and Prof. F. Meyer, Drumm- 

 str. 25-29, Konigsberg. 



September 27-30. — International Physiological Congress. Vienna. 

 President : Prof. S. Exner. General Secretary for United Kingdom : 

 Prof. E. B. Starling, University College, London, W.C. 



October 6-12.^ — Congres International du Froid. Vienna. Correspon- 

 dent for United Kingdom : Mr. R. M. Leonard, 3 Oxford Court, Cannon 

 Street, E.C. 



DIARY OF SOCIETIES. 



THURSDAY, Ju.ne 2. 



Royal Society, at 4.30. — The Influence of Bacterial Endotoxins on 

 Phagocytosis (Preliminary Repo't) : Leonard S. Dudgeon, P. N. Panion. 

 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 Degenera'ive and Regenerative 

 Change in Living Structures: 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 Lieht : Dr. R. D. Kleeman.— On 

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

 Water in Curved Pipes : Prof. J. Eustire. — On the Occurrence of a Meso- 

 roelic Recess in the Human Brain and its Rela'ion to the Sub-commissural 

 Organ of Lower Vertebrates ; with special reference to the Distribution 

 of Reissner's Fibre in the Vertebrate Series and its Possible Function : 

 Prof. A. Dendy, F.R.S., and G. E. Nicholls. 



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



Institutio.m of Mining Engineers, at ii a.m. — Presidential Addre.ss : Dr. 

 J. B. Simpsin. — 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 

 Miihiberg. 



LiNNEAN Society, at 8. — A Contribution to our Knowledge of the Flora 

 of Gazaland : Dr. A. B. Rendle, F.R.S., and others. 



RoNTGEN Society, at 8.15. — Practical Okservaiions 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 3.— 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.— Exp-riments illustrative 

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

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

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



Geologists' Association, at 8. — A Preliminary Account of the British 

 Fossil Voles and Lemmings ; with some Remarks on the Pleistocene 

 Climate and Geography : M. A. C Hinton. — Notes on .some Igneous 

 Rocks from North Devonshire : H. Dewey. 



SATURDAY, June 4. 



Ro'AL Institution, at 3.— Electric Heating and Pyrometry : Prof. J. A. 

 Fleming, F.R.S. 



MONDA y, June 6. 



Royal Geographical Society, at 8. 30. — The Yolo-Cross River Boundary 

 Commission, Southern Nigeria: Major G. F. A. Whitlock, R.E. — 

 Journeys in Southern Nigeria : P. A. Talbot. 



Victoria Institute, at 4.30. — Determinism : Archdeacon Potter. 



Aristotelian Society, at 8. — The Nature of Propositions : Sydney 

 Waterlow. 



Society of Chemical Industry, at 8. — The Accuracy obtainable in Fuel 

 Calorimetry : G. N. Huntly. — Differential Distillation: J. L. Foucar. — 

 The Production of Formic Acid bv the Atmospheric Oxidation of Tur- 

 pentine : C. T. Kingzett and R. C. Woo Icock.— Proposed Method for 

 the Estimation of Butter Fat, Cocoa Nut Oil, Palm Kernel Oil and the 

 Determination of their respective Proportions in Mixtures : S. H. Blich- 

 feldt.— The first Synthesis of Ethyl Alcohol: Prof. R. Meldola, K.R.S. 



TUESDA Y, June 7. 



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

 C. J. Holmes. 



Mineralogical Society, at 5.30. — On the Occurrence of Phenakite in 

 Cornwall : A. Russell.— (i) Phacolite from near Belfast ; (2) Crystalline 

 Form of Nitrogen Sulphide : Dr. G. F. H. Smith. — On a new Arsenate 



NO. 21 18, VOL. 83] 



and Phosphate of Lime and Strontia from the Indian Maganese Deposits : 

 Dr. G. F. H. Smith and Dr. G. T. Prior.— A (fifth) List of New Mineral 

 Names : L. J. Spencer. 



THURSDAY, June 9. 



Royal Society, at ^.-yi.— Probable Papers : The Distribution of Velocity 

 in the p-_Rays from a Radio-active Substance : J. A. Gray. — The Decrease 

 of Velocity of the /3-Particles on Passing through Matter : W. Wilson. - 

 Rate of Emission of o-Particles from Uranium and its Products : J. N. 

 Brown. — The Effect of Small Traces of Water Vapour on the Velocitie 

 of Ions produced by Ron t gen Rays: R. T. Latiev. — On the Variati'> 

 with Temperature of the Viscosities of the Gases of the Argon Group ! 

 Dr. A. O. Rankine. — The Effect of Pressure upon Arc Spectra. Part IL, 

 No. 4, Gold : Dr. W. G. Duflield. 



Mathematical Society, at 5.30. — A New Method in the Theory of 

 Integration : Dr. W. H. Young. — The Composition of Finite Screw 

 Displacements : G. T. Bennett. — Mote on the Theory of Linear Differen- 

 tial Equations : Prof. M. J. M. Hill — The Generation of Cubic Curve-; 

 bv Apolar Pencils of Lines: W. P. Milne. — On Semi-integrals and 

 Oscillating Successions of Functions : Dr. W. H. Young. 



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

 FRIDAY, June 10. 



Royal Institution, at 9. — The Progressive Disclosure of the Entire 

 Atmosphere of the Sun (in French) : Dr. H. Deslandres. 



Physical Society, at 8. — A Galvanometer for Alternate Current Circuits : 

 Dr. W. E. Sumpner and W. C. S. Phillips. — The Positive Electrification 

 due to Heating Aluminium Phosphate : A. E. Garrett. 



Royal Astronomical Society, at 5. 



Malacological Society, at 8. — A Revision of the Species of the Family 

 Pyramidellidae occurring in the Persian Gulf, Gulf of Oman, and the 

 North Arabian Sea : Dr. f. Cosmo Melvill. — The AnaXomy oi Heiniplecta 

 foullioyi from New Guinea : R. H. Burne. — Further Notes on the Dates 

 of Issue of Sowerby's " Conchological Illustrations " : A. Reynell. 

 SATURDAY, June ii. 



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

 Fleming, F.R.S. 



CONTENTS. PAGE 



The Mammals of Somaliland. By Sir H. H. 



Johnston, G.C.M.G., K.C.B 391 



Some British Fresh-water Protozoa ....... 392 



Technical Chemistry of Sugar and Starch. By C. S. 393 



Petroleum Mining and Oil-fields 393 



Essays on Angling. By L. W. B 39^ 



Zoological Studies 39,^ 



Our Book Shelf:— 



Greenwood: " Physiology of the Special Senses" . . 39J 



Hull: " Reminiscences of a Strenuous Life " . . 391 

 Tarbell : "Catalogue of Bronzes, &c., in Field 



Museum of Natural History " 39< 



Millard : "The Building and Care of the Body " . 39( 

 Bradley : " The English Lakes " ; Danks : "Canter- 

 bury " ; How: "Oxford" 39< 



Letters to the Editor : — 



The Temperature Conditions within Clouds. (Illus- 

 trated.) — Andrew H. Palmer 39( 



Efldy Formation — A Correction.— E, H. Harper; 



G. H. B .393 



The Nutritive Value of Black Bread. — Frank H. 



Perry-Coste ; The Writer of the Article . . . 39? 



Native Tantalum. — Dr. W. von John . ... 39J 

 The Recent Eruption of Mount Etna. [Illustrated.) 



. By Prof. A. Riccb 39< 



The Ethnography of Southern India. (Illustrated.) 40C 



Sheffield Meetmg of the British Association . . . 401 



Prof. Robert Koch, For.Mem.R.S 40J 



Major Philip Cardew, RE 40^ 



Notes 404 



Our Astronomical Column : — 



The Solar Constant 40< 



Origin of Binary Stars 40< 



The Astronomical Society of Antwerp 405 



Observations of Halley's Comet. (Illustrated.) . . 40* 



A Nutrition Laboratory. (Illustrated.) 411 



Sewage Disinfection. By Edward Ardern . . . 411 

 Oceanograpnical Investigations in the Atlantic and 



Mediterranean 413 



A New Amperemeter 41^ 



Geology of the London District . . 41; 



Economic Entomology. By G. H. C 4M 



Alterations of the Development and Forms of 

 Plants as a Result of Environment. By Prof. 



G. Klebs 41^ 



Plants of Scottish Lochs. (Illustrated.) 415 



University and Educational Intelligence 417 



Societies and Academies 418 , 



Forthcoming Congresses 419 



Diary of Societies 420 '\ 



