144 



NA TURE 



[June 1 1, 1908 



furnishing the expert with a photographic document, which 

 may be used as supplementary evidence. — A new thermo- 

 pulveriser worked by means of compressed air : M. 

 Guyenot. The various forms of apparatus in current use 

 for producing sprays of aqueous solutions for therapeutic 

 purposes cannot be used for a higher temperature than 

 25° C. In the apparatus described and figured in the 

 present paper, any temperature up to ^o" C. can be main- 

 lained at will. — Researches on the food of the typhoid 

 bacillus : H. Dunschmann. A comparison of the nutritive 

 effects of bile salts on the typhoid and coli bacilli. — The 

 utilisation of concentrated saline solutions for the differ- 

 entiation of bacteria. The separation of Bacillus typhosus 

 from Bacterium coli : A. Guillemard. A strong saline 

 solution, such as one containing 20 per cent, of sodium 

 sulphate, causes differences in the growth of cultures of 

 the typhoid and coli bacilli, by means of which thev can 

 be readily differentiated. Other bacilli have been studied 

 from the same point of view. — The presence of Ilippurite 

 grit at Vence, Alpes-Maritimes : V. Paquier. — The 

 Cretaceous and Tertiary strata in the region of Constan- 

 tine, Algeria: E. Joleaud.— The use of Daguin's 

 acoustele for the detection of subterranean sounds : F. 

 Dienert, A. Guillerd, and M. Marrec. An account of 

 the application of this instrument to the tracing of currents 

 of underground water bv means of the sound produced by 

 the^ stream. The method is -onlv successful in a few 

 limited cases. — The influence of the wind on the filling 

 up of the bed of the ocean : M. Thoulet. — Contribution to 

 the study of the I.andwasser river and the Davos valley : 

 Gabriel Eisenmeng;er. 



DIARY OF SOCIETIES. 



THURSDAY, Jcne ii. 



^'athematical Society, at 5.30.— Electrical Resonance: Prof. H. M. 

 Macdonald.— Relations between the Divisors of the First n Numbers 

 (second paper) : Dr. J. W. L. Glaisher.— The Formation of Fundamental 

 Harmonics : Prof. A. E. H. Love. 



FRIDAY, June 12. 

 RcvAL Astronomical .Society, at 5.— Considerations on the Form and 

 Arrangement of New Tables of the Moon : Simon Newcomb.— On the 

 Orbit of 3 416 : J. Voute.— An Example of Prof. Karl Pearson's Calcula- 

 tion of Correlation in ihe Case of Periodic Inequalities of Long Period 

 Variables ; H. H. Turner.— On the Paral'ax and Proper Motion of the 

 Double Star Knieger 60: E. E. Barnard.-Observations of Daniel's 

 Comet (d 1907): Radchffe Observatory, Oxford.— The Lunar Bright 

 Rays: H. G. Tomkins.— Observations of Helium D-i Absorption in the 

 Neighbourhood of Scots in 1907 : Capt. R. A. C. Daunt.— The Radius 

 of the Moon for" Libration -j's: Walter V^eM'n.—ProltiiUt paper : 

 Report on Observations of the Total Solar Eclipse of 1008 lanuarv 1 : 



F. K. McClean. -^ j 3 :> 



Aristoteman Society (at Cambridee).— Symposium : The Nature of 

 Mental Activity ; Profs. S. Alexander, James Ward, Carveth Read, and 



G. F. Stout. . 



Physical Society, at 8.— Ex-eriments on a D'rec'ive System of Wire- 

 less Telegraphy : Messrs. Bellini and Tosi.— On the Lateral Vibration 

 and Deflection of Clamped Directed Bars : Dr. Morrow.— On the Resist- 

 ance of a Conductor of L'nif..rm Thickness whose Bre.idth Suddenly 

 Changes, and on the .Shanes of the Stream-lines: Prof. L<-es — On the 

 Self-inductance of Two Parallel Wires : Dr. Nicholson.- On Homo- 

 geneous Secondary Radiation : Dr. Barkla and Mr. Sadler.— Notes on 

 the Motion of a Corpu^cle and on Cloud Formaiion : Prof. Morton 



Geologists' Association, at 8.— Origin of Mountain Tarns : Prof E. I. 

 Garwood. 



MONDAY, June 15. 



Royal Geographical Society, at 8.30.— Journey on the Upper Salwin : 

 George Forrest. 



TUESDAY, }\^t>-Ei<i. 



Royal Statistical Society, at 5. 



Zoological Society, at 8.30. -The Duke of Bedford's Zoological Explora- 

 tion of Ea.stern Asia.— X. List of Mammals from the Provinces of Chi-li 

 and Shan-si, N. China: Oldfield Thomas, F.R.S — Ona Case of Imperfect 

 Development m Echinus esciiUnliis : James Ritchie and D. C. Mcintosh. 

 —Observations rn the Minute Structure of the Spicules of Calcareous 

 Sponges : Prof. E. A. Minchin and D J. Reid.-Two New Genera and 

 a New .Species of Indian Lycajnidse : Dr. T. A. Chapman.— A Conlribu- 

 tion to the Knowledge of Rhinodermn itanuini : F. K. Beddard, F.R.S. 

 --Some Notes upon the .\nalomy of Chiromys madagascariensh witti 

 References toother Lemurs: F. E. Beddard, V .fl..%.—Le„cocytozoon 

 )m«c>(/;. sp. n., a Parasitic Protozoon from the Blood of White Mice • 

 Miss Annie Porter. 



MlNERALOGiCAL SociETV, at B.-Ou a NlckeMrou Alloy Common to the 

 Meteoric Iron of Youndegin .and the Meteoric Stone of Zomba : 

 L.. I'letcher, F.R.S.— Kaolinization and other Changes in West of 

 England Rocks : F. H. Butler.— On Schwartzembergite, and the Draw- 

 ing of Light Figures : Dr. G. F. Herbert Smith.— The Chemical Com- 

 posiuon of Seligmannite: Dr. G. T. Piior. 



NO. 



2015, VOL. 78] 



WEDNESDAY, June 17. 



Geological Society, at 8. 



KovAi. Meteorological Society, at 4.30. — An Elementary Explanation 

 of Correlation, Illustrated by Rainfall and Depth of Water in a Well: 

 R. H. Hooker. — The Hong Kong Typhoon, September j6, 1906 : 

 L. Gibbs. 



Royal Microscopical Society, at 8. — On Cycloloculina, a New 

 Generic Type of the Foraminifera : E. Heron-Allen and A. Earland. — 

 Illuminating Apparatus for the Microscope: J. W. Gordon. — Exhiltits: 

 A New Lens for High Power Microscrpy: Mr. Gordon and H. Fletcher 

 Moulton- — The Development of the Chick : A. Flatters. 

 . -THURSDAY, }\s-ii^ -Li. 



Royal Society, at 4.30. — ProbahU Papers : (i) An Electrical Method Of 

 Counting the a Particles from Radio-active Matter ; (2) The Charge and 

 Nature of the a Particles: Prof. E. Rutherford, F.R.S., and Dr. Hans 

 Geiger. — The Scattering of the a Kays by Matter : Dr. Hans Geiger. — 

 Studies of the Proce-ses Operative in Solutions. Part VI., Hydration, 

 Hydrolation and Hydrolysis as Determinants of the Properties of 

 Aqueous Solutions ; VII., The Relative Efficiencies of Acids as deduced 

 from their Conductivities and Hydrolytic .Activities : VI II., The Influence 

 of Salts on Hydrolysis and the Determination of Hydration Values; 

 IX., The Determination of Optical Rotatory Power in Solutions ; X., The 

 Changes Effected bv the Reciprocal Interference of Cane .Sugar and 

 other Substances (Salts and Non-electrolytes): Prof. H. E. Armstrong, ^ 

 F.R.S , and others.- The Electrolytic Properties of Dilute Solutions of 

 Sulphuric 'Acid : W. C D. Whetham, F.R.S., and H. H. Paine.— The 

 Giant Nerve Cells and Fibres of Halla partkenopcia : Dr. J. H. Ash- 

 worth. 



Chemical Society, at 8.30. — The Thermal Decomposition of Hydrocar- 

 bons, Part I., Methane. Ethane, Ethylene and Acetylene : W. A. Bone 

 and H. F. Coward.— The Rusting of Iron: W. A. Tilden.— Studies on 

 Elementary Zirconium : E. Wedekind and S. J. Lewis. —(1) The Con- 

 stituents of Canadian Hemp. Part I , .\pocynin ; (?) A New Synthesis of 

 Apocynin : H. Finneiiiore. — The Constitution of the Diazonium Perbro- 

 mides : F. D. Chattawav. — Cholestenone : C. Doree and J. A. Gardner. 

 —A New Form of Potash Bulb: A. E. Hill.— Solubility of Silver 

 Chloride in Mercuric Nitrate Solutions: B. H. Buttle and J. T. Hewitt. 



LlNNEAN Society, at 8. 



CONTENTS. PAGE 



Systematic Exploration at Deir-el-Bahari 121 



Biography of an Inventor. By Prof. G. H. Bryan, 



F.R.S 122 



A French Treatise on Geology. By J. W. G. . . . 123 



Botanical Photographs 124 



Paints and Pigments. By Dr. A. P. Laurie .... 125 

 Our Book Shelf:— 



Halse : "A Dictionary of Spanish and Spanish- 

 American Mining, Metallurgical, and Allied Terms, 

 to which some Portuguese and Portuguese-American 



(Brazilian) Terms are Added " 125 



Vorlander : " Immanuel Kants Metaphysik der 

 Sitten " ; Michaelis : " Kirchners Wiirterbuch der 

 philosophischen Grundbegriffe " ; Schaarschmidt : 

 " B. de Spinoza's kurzgefasste Abhandlu»gl^on 

 Gott, dem Menschen und dessen Gluck " ; Lasson : 

 "G. W. F. Hegel's Ph;inomenologie des Geistes " . 126 

 Baker : " The Spectroscope : its Uses in General 



Analytical Chemistry." — W. E. R 126 



Richter : " Der Bedeutung der Reinkultur. Eine 



Literaturstudie."— R. T, H 126 



Letters to the Editor: — 



The Coloration of Birds' Eggs. — A. R. Horwood . 126 

 Electric Action of Sodium. — Charles E. S. 



Phillips 127 



Tabular Accuracy.— C. T. 'Whitmell 127 



The " Sky-coloured Clouds." — T. W. Backhouse . 127 

 Some Scientific Centres. No. XIII. —The Mechanics 

 Laboratory of the Imperial College of Science 

 and Technology. (Illustrated.) ByH. E. 'W. . . 128 



The Milky 'Way 129 



Sir John Evans, K.C.B., F.R.S. By W. R 131 



Notes 132 



Our Astronomical Column : — 



Bright Meteor i.;6 



The Total Solar Eclipse of May 8, 1910 136 



The Dark D, Line in the Sun 156 



Position of the Axis of Mars 136 



The (?)rbit of a Andromeda; 136 



The Eccentricities of Comet Orbits 136 



The Royal Observatory, Greenwich 136 



'Visual Illusion and Fixation. [Illustrated.') .... 138 

 Some Recent Petrological Papers. By G. A. J. C. . 138 



The Institution of Mining Engineers 140 



University and Educational Intelligence 140 



Societies and Academies. {With Diagrams.) . . . . 141 

 Diary of Societies 144 



