96 



NATURE 



[May 28, 1J08 



A. Guyot and P. Pignet. — The cytology of the renal 

 labyrinth of the Thysanoura : L. Bruntz. — The biology of 

 a parasitic Rhabdocoele of Cardium cdiile : Paul Hallez. 

 — The action of the X-rays on the evolution of the 

 mammary gland during pregnancy in the rabbit : MM. 

 Cluzet and Bassal. The evolution of the mammary 

 gland may be hindered at all stages by the application of 

 the X-rays, the maximum effect being produced when it is 

 made in the course of the first fortnight. — The arrest and 

 prolonged detention of radium sulphate in the living 

 tissues : H. Dotninici and Faure-Beaulieu. — The theorv 

 of electrical stimulation : Louis Lapicque. — An attempt to 

 separate hypertensive substances from the urine : J. E. 

 Abelous and E. Bardier. — Epithelioma and the parasitic 

 nature of cancer : E. J. Bosc. — .Acute tuberculous septi- 

 caemia of the guinea-pig : Andr^ Jousset. — Tubercles and 

 fossil stems of Equisetum : P. H. Fritel and Ren^ 

 Vigruer. — The utilisation of faults for the determination 

 of the mean density of the earth : A. Bergret. — The study 

 of the sea floor in the bay of the Seine : J. Thoulet. 



GOTTINGEN. 



Royal Society of Sciences. — The Nachriihten (physico- 

 mathematical section), part i. for iqoS, contains the follow- 

 ing memoirs contributed to the society : — 



December 21, iqoy. — The Pyrenomycetes and Tuberacea; 

 of the Gottingen flora : A. Peter. — The fundamental equa- 

 ■ions for the electromagnetic processes in moving bodies : 

 H. Minkowfski. 



February .S, 1908. — Researches from the Gottingen Uni- 

 versity chemical laboratory (xix.) (i) Dissociation by the 

 addition of water in terpene compounds ; (2) synthesis of 

 o-phellandrene ; (3) synthesis of isofenchone (C,„H,,0) from 

 nopinone (C,H,,0) : O. Wallach.— The differential equa- 

 tions of binary semi-inv.iriants and invariants in in- 

 dependent substitutions : W. Fr. Meyer. 



February 22. — The uniformisation of algebraic curves 

 (imaginary substitution-groups) : P. Koebe. 



DIARY OF SOCIETIES. 



THURSDAY, May 28. 

 Royal Society, at 4.10.— On the Theory of Caplllaritv: Prof. E. T. 

 Whitlaker. F.R.S.— Effect of a Cross Wind on Rifled Projectiles: 

 A. Mallock, F.R.S.— Transparent Silver and other Metallic Films: 

 Prof. T. Turner. — Mrs. Ayrton will give Demonstrations of Wave-Motion 

 in Water. (Paper read January 30, 1908.) 



Royal Institution, at 3.— The Chemistry of Photography : Dr Alexander 

 Scott, F.R.S. 



Institution of Electrical Engineers, at 8. 

 FRIDA J', May 29. 

 Royal Institution, at q.— Ancient and Mediieval Projectile Weapons 

 other than Firearms : .Sir Ralph Payne-Gallwey, Bart. 



MONDAY, June i. 

 Arlstotf.lian Society, at 8.— Person and Thing : Prof. G. Dawes Hicks. 

 Institute of Actuaries, at 5.— Annual General Meeting. 



TUESDAY,]vK^-2. 

 Royal Institution, at 3.— .\nimal Heat and KVCkA Phenomena: Prof. 

 William Stirling. 



WEDNESDAY, June 3. 

 Society OF Public .Analysts, at 8.— Studies in Steam Distillation. 

 Part iii.. The Fatty -\cids : H. Droop Richmond.— The Detection of 

 Poisonous Metals : Dr. O. D. Lander and Mr- H. W. Winter.— The 

 Estimation of Cocoanut Oil in Butter : Raymond Ross.- Ochoco Fat : 

 Dr. Julius Lewkowitsch.— The Detection of Small (juantitirs of Methyl 

 -Alcohol in the Presence of Ethyl .Mchohol ; T . E. Hinkel.— The Separa- 

 tion of Certain Volalile Fatty Acids by iE.\tractlon with Benzene or 

 Toluene : T. R. Hodgson. 



Entomological Society, at 8.— On certain Nycteribiid^, with Descrip 

 tions of Two New Species from Formosa: Hugh Scott. — Descriptions of 

 some new Hesperidae from Central and South America : Hamilton H. 

 Druce.— Mimicry in Tropical American Butterflies: J. C. Moulton. — 

 Heredity in the South-east African Form (ct'wcrt) of Papilio dardanits 

 (nicropc): G. F. Leigh. 



Geological Society, at 8.— On the Fossiliferous Rocks of the Southern 

 Half of the Tortworth Inlier: F. R. C. Reed and Prof. S. H. Reynolds. 



THURSDAYy'iv^^i,. 



Royal Society, at 4.30 —Probable Papers: On the Aberration of Sloped 



Lenses and on their Adaptation to Telescopes of llnequal Magnifying 



Power in Perpendicular Directions : Lord Rayleiffh. O.M., Pres 



K.S.— On he Vi-cosity of Ice: R. M. Deeley.— The Effect of Ttmpera. 



NO. 2013, VOL. 78] 



lure on the Neutralisation-Volume Change for Different Salts ar Differerf 

 Concentrations : Miss Ida Freund. — Note on a New Sounding Machine 

 for Use on Lakes and Ri\'ers without a Boat : Prof. E- J- Garwood. 



RoyalInstitution, at 3. — Ihe Chemistry of Photography : Dr. Alexander 

 Scott, F.R.S. 



LiNNEAN Society, at 8. — Note on the %x>^fL\3\&% oi Chlrodota gevimifera 

 Dendy Hindle : Prof \, Dendy, F.R.S. — Two New Fungus Diseases : 

 E. S. Salmon.— The Caryophyllaceac of Tibet : F. N. Williams.— Poly- 

 chaetaofthe Indian Ocean : F- .\. PottS- — The Stylasteria of the Indian 

 Ocean : Dr. S. J. Hickson. F.R.S., and Miss Helen .M- England. — 

 A Contribution to the Mycology of South Afr.ca : W. N. Cheesman and 

 T. Gibbs. — Exhibits : Drawings prepared to illustrate Descourtly's 

 " Ornithologie bresilienne." : C. E. .Salmon. — Lantern.slides of the Life- 

 history of a Wood-boring Wasp : F. Enoch. 



Institution of Mining Engineers, at ir a. m — Presidential Address by 

 C. E. Rhodes. — The .Mineral Resources of Trinidad : J. Cadman. — The 

 Occurrence of Fluorspar in Derbyshire : C. B. Wedd and G. C. Drabble. — 

 Calcining-kilns : G. Jones. — Cobalt and Northern Ontario : J. B. Tyrrell. 



Chemical Society, at 8. 30. — Condensation Products from Pinene Amino- 

 dicarboxylic Acid : W. Godden.— A Delicate Test for Bromides alone, or 

 in Solution with Chlorides : J. S- Jamieson. — Experiments on the Synthesis 

 of i-Meihylcyc!ohexylidene-4-acelic Acid : W. H. Perkin and W. J. Pope. 

 — The Triazo-group. Part iv., Allyl .\zoimide: M. O- Forster and 

 H. E. Fieri. 



/•;?/i3.4r, Junes. 



Royal Institution, at g. — The Nadir of Temperature and Allied 

 Problems: Sir James Dewar, F.R.S. 



Institution of Mining Engineers, at 11 a.m. — Winding-engine Test.s, 

 with Notes and Suegestions on the Design and Testing of Plant : S. L. 

 Thacker.^'l he Utilisation of Sewage forthe Production of Crude Oil and 

 Ammonia : M. F. Purcell. — The Oil Prospects of Central British South 

 Africa: Dr. C Sandherg. — Oil-mining: D.M.Chambers. — Mining in the 

 Boundary District of British Columbia : F. Keffer. 



CONTENTS. PAGK 



The Science of the Electron 73 



Oceanic Tides 74 



Garden Books 75 



German Science Manuals. By C! Simmonds ... 76 

 Our Book Shelf:— 



Oliver: "Studies in Blood Pressure: Physiological 



and Clinical " 77 



Melick : "Dairy Laboratory Guide " 77 



Drake: "Discoveries in Hebrew, Gaelic, Gothic, 

 Anglo-Saxon, Latin, Basque, and other Caucasic 

 Languages, showing Fundamental Kinship of the 

 Aryan Tongues and of Basque with the Semitic 



Tongues " 77 



Letters to the Editor: — 



Fellowsliip of the Royal Society. — Enquirer. ... 78 



Earthquakes and Earthshakes.—R. D. Oldham . . 78 



Classification and Mathematics. — C. Elliott .... 78 



AnEmanation from Sodium. — Charles E, S. Phillips 79 



Wind Pressure, (llliistrattd.) By Dr. T. E. Stanton 79 



British Museum Guide to Insects. {Illusti-ated.) . . 82 



Prof. K. A. Mobius 82 



The British Members of the Institute of France . 83 



Notes, (llhisli-aled) 84 



Our Astronomical Column: — 



Daniel's Comet, 1907;^ 88 



Spectroscopic Binaries 88 



Recent Observations of Jupiter 88 



Double. Star Observers 88 



The Colour Filter and Isochromatic Plate in Astro- 

 nomical Photography 85 



A New Astronomical Journal 88 



Alternate Current Measurement. (IVilh Diagram.) 



By Dr. W. E. Sumpner 88 



New Lights on the Anthropology of California. . . 89 



Meteoric Phenomena in June. By W. F. Denning go 



Vision and Colour-Vision 90 



University and Educational Intelligence 91 



Societies and Academies 92 



Diary of Societies 96 



