5 8 4 



NA TURE 



[February 19, 1903 



behave differently towards chlorine ; in the first case a com- 

 plicated chloroacetate of the oxide Co 3 4 is obtained, and 

 in the second a manganese acetate derived from the sesqui- 

 oxide. — Study of the action of selenyl chloride upon mannite, 

 by MM. C. Chabrie and A. Bouchonnet. — The synthesis 

 of anisic acid and paraethoxybenzoic acid, by M. F. 

 Boudroux, Monobromo derivatives of phenols react readily 

 with magnesium in the presence of anhydrous ether, and 

 the magnesium compounds produced absorb carbon dioxide. 

 The product of this reaction, treated with hydrochloric acid, 

 gives the corresponding carboxylic acid. Acids have been 

 •obtained in this way from anisol and phenetol. — Studies in 

 the pyrane series, by M. R. Fosse. — The migration of the 

 methyl group under the action of hydriodic acid, by M. E. E. 

 Blaise. — On a new orthocyclohexanediol and its derivatives, 

 by M. L^on Brunei. — On two new glucotannoids, by M. 

 Eugene Gilson. — On the essence of Calamintha Nepcta or 

 Marjolaine in the south of France, by MM. P. Genvresse 

 and E. Chablay. The essence contains pinene, pulegone 

 and a new ketone, calaminthone, the properties of which, 

 together with those of its oxime and semicarbazone, are de- 

 scribed. Nascent hydrogen transforms this ketone into 

 menthol. — Morphogenesis in Salmacina Dysteri, by M. A. 

 Malaquin. — On the presence of glucose in the cephalora- 

 chidian fluid, by MM. L. Grimbert and V. Coulaud. — On 

 the nutrition of Sterigmatocystis nigra, by M. Henri 

 Coupin. Iron, silicon and zinc are not used for nutrition 

 by Sterigmatocystis nigra, zinc even retarding the develop- 

 ment. The mycelium is capable of furnishing the acidity 

 necessary for the entire development. — On a disease of the 

 branches of the fig, by M. A. Prunet. — On phthiriosis, a 

 disease of the vine caused by Dactylopius Vitis and Bornetina 

 Corium, by MM. L. Mangin and P. Viala. The disease is 

 very prevalent in the vine in Palestine. The use of carbon 

 bisulphide injected into the soil is recommended for com- 

 bating the disease. — On a caoutchouc-bearing plant of the 

 Lower Congo, by M. E. de Wildeman. The plant is a new 

 species of Clitandra, resembling C. orientalis ; it is named 

 C. Arnoldiana. — On vegetative activity at the epoch of the 

 Coal-measures, by M. B. Renault. From a study of the 

 fossils in coal, it is concluded that the cellular tissues pos- 

 sessed a greater activity of formation than at present, this 

 activity being favoured by an appropriate vascular develop- 

 ment. — On a special type of dunes on the borders of the 

 Sahara, by M. B.-P.-G. Hochreutiner. — On the reduction 

 of oligiste and magnetite by hydrocarbons, by M. L. de 

 Launay. — An experimental contribution to the knowledge 

 of life and muscular reactions, by MM. Ed. Toulouse and 

 CI. Vurpas. — On the lifting effect developed by the rota- 

 tion of helices with vertical axes, by M. Henri Villard. 



DIARY OF SOCIETIES. 



THURSDAY, February iq. 



Royal Society, at 4.30. — On the Formation of Definite Figures by 

 the Deposition of Dust : Dr. W. J. Russell, F.R.S.— Mathematical Con- 

 tributions to the Theory of Evolution. On Homotyposis in Homologous 

 but Differentiated Organs : Prof. Karl Pearson, F.R.S. — The Evapora- 

 tion of Water in a Current of Air (Communicated by Prof E. H. 

 Griffiths, F.R.S): Dr. E. P. Perman.— On the Determination of 

 Specific Heats, especially at L-^w Temperatures : H. E. Schmitz. 



Royal Institution, at 5.— Arctic and Antarctic Exploration: Sir 

 Clements Markham, K.C.B. 



Linnean Society, at 8. — Electric Pulsation in Desmodiunt gyransx 

 Prof. J. C. Bose — Ceraittphis Lataniae, a remarkable Aphid : Alice L. 

 Embleton — Specialisation of Parasitism in the Erysiphace^e : S. E. 

 Salmon. 



FRIDA Y, February 20. 



Geological Society, at 3.— Annual General Meeting. 



Royal Institution, at 9. — The Measurement of Energy: Principal 

 E. H. Griffiths. 



Institution of Mechanical Engineers, at 8. — Hydraulic Experi- 

 ments on a Plunger Pump : Prof. John Goodman. — Experiments on the 

 Efficiency of Centrifugal Pumps : Thomas E. Stanton. 



MONDAY, February 23 

 Society of Arts, at 8. — Paper Manufacture : Julius Hiibner. 

 Royal Geographical Society, at 8.30. — Further Explorations in the 



Canadian Rockies : Prof. Norman Collie, F R.S. 

 Institute of Actuaries, at 5. — Further Remarks on the Valuation 



of Endowment Assurances in Groups: George J. Lidstone. 



TUESDA Y, February 24. 

 Royal Institution, at 5. — Recent Advances in Photographic Science : 

 Sir William Abney, K.C.B. 



Anthropological Institute, at 8.15. — Exhibition of Bronze Bells an 



other Objects from Nigeria: C. Partridge, jun. — Stone Implements 



from Perak : R. Swan. 

 Society for the Promotion of Hellenic Studies, a t 5. 

 Institution of Civil Engineers, at 8. — Mechanical Handling of 



Material : G. F. Zimmer. 



WEDNESDA Y, February 25. 

 Geological Society, at 8.— On the Occurrence of Dictyozamites in 



England, with Remarks on European and Eastern Floras : A C. Seward, 



F.R.S. — The Amounts of Nilrogen and Organic Carbon in some Clays 



and Marls : Dr. N. H. J. Miller. 

 Society of Arts, at 8. — Tonkin, Yunnan and Burma : F. W. Carey. 

 Epidemiological Society, at 8.30 — Discussion on the Panama Canal 



and the Introduction of Yellow Fever into Asia, to be opened by Dr. 



Pattick Manson, F.R.S. 

 University College Chemical and Physical Society, at 8. 30. — The 



Attainment and Measurement of Low Temperatures : Dr. M. W 



Travers. 



THURSDA Y, February 26. 

 Royal Society, at 4.30. — Bakerian Lecture: Solid Solutions and 



Chemical Transformation in the Bronzes : C. T. Heycock, F.R.S., and 



F. H. Neville, F.R.S. 

 Royal Institution, at 5. — Insect Contrivances: Prof. L. C. Miall, 



F.R.S. 

 Society of Arts, at 4.30. — Gleanings fiom the Indian Census: J. A. 



Baines. 

 Institution of Electrical Engineers, at 8. — The Nernst Lamp: 



J. Stottner.— And, it time permit, 1 Jistiibution Losses in Electric Supply 



Systems : A. D. Constable and E. Fawssett. — A Study of the 



Phenomenon of Resonance in Electric Circuit by the Aid of Oscillo- 

 grams : M. B. Field. 



FRIDA Y, February 27. 

 Royal Institution, at 9. — Perfumes : Natural and Artificial: Dr. A- 



Liebmann. 

 Institution of Civil Engineers, at 8. — The Relative Advantages of 



Single Sctews, Twin Screws, and Triple Screws, for Marine Propulsion: 



E. Falk. 



SA TURDAY, February 28. 

 Royal Institution, at 3. — Light : Its Oiigin and Nature : Lord 



Rayleigh. 



NO. 1738, VOL. 67] 



CONTENTS. page 



Electric Radiation from Wires. By Dr. J. Larmot, 



F.R.S 361 



A Study in Alpine Geology. By J. A. H 364 



Sherborn's Index Animalium 365 



Out Book Sb-H : - 



Fiirth : " Vergleichende chemische Physiologic der 



niederen Tiere " 366 



Duhem : " Thermodynamique et Chimie. Lecons 



elementaires a l'usage des Chimistes. " — G. H. B. 366 

 Lenhossek : "Das Problem der geschlechtsbestim- 



menden Ursachen." — J. A. T 366 



"The Schoolmaster's Yearbook for 1903. A 

 Reference Book of Secondary Education in 



England and Wales " ... 367 



Murche : " The Globe Geography Readers " .... 367 

 Steward and Mitchell : "The Nature Student's Note 



Book" 367 



Letters to th< F.ditor: — 



The late Sir G. G. Siokes.— Chemicus 367 



The Holy Shroud of Turin.— R. E. Froude. F.R.S. 367 

 The Principle of Activity and Lagrange's Equations. 

 Rotation of a Rigid Body. — Prof. vV. McF. Orr ; 



Oliver He.viside, F.R.S 368 



Insects and Petal-less Flowers. — E. Ernest Lowe . 368 

 Science and the Education Act of 1902. — Rev. Dr. 



A. Irving . . . 369 



Radio-Activity of Ordinary Materials. By Hon. 



R. J. Strutt ... 369 



Oysters and Typhoid Fever. By Prof. R. T. 



Hewlett . . 370 



Mr. Marconi and the Post Office. By Maurice 



Solomon . 370 



The Constitution of the New Education Com- 

 mittees ... .' 371 



Notes 372 



Our Astronomical Column : — 



Obsenations of Comet 1903 a . . jj6 



Determinations of Stellar Radial Velocities 376 



The Colour of the Eclipsed Moon 376 



Solar Prominences and Terrestrial Magnetism. 



(IVith Dia.ram; ) By Dr. vV illiam J. S. Lockyer . 377 

 The Fortr ss of the Mole. By R. L. .... 379 



The Visibility of Ultra-Microscopic Particles . . 380 



University and Educational Intelligence 380 



Societies and Academies 381 



Diary of Societies 3^4 



