5** 



NA TURE 



[March 29, 1906 



of the negative ions. — Antimony and sulphide of antimony : 

 MM. Chretien and Guinchant. — The action of the amino- 

 ethers and imino-chlorides on organo-magnesium deri- 

 vatives : R. Marquis. An attempt at a new general 

 method for the synthesis of ketones, starting with the 

 imino-ether R.C(OR) : (NR). The yield in the case ol 

 benzophenone is good, hut the method is not general. In 

 some cases the imino-chloride gives better results. — The 

 preparation of glycidic ethers and of aldehydes in the 

 hexahydroaromatic series : Georges Darzens and P. 

 Lefebure. The glycidic esters were obtained by the inter- 

 action of chloracetic ester with cyclohexanone in the 

 presence of sodium ethylate. The aldehyde is prepared 

 from the glycidic ester by heating in a vacuum. The 

 reaction has been applied successfully to homologues of 

 cyclohexanone. — The structure and probable origin of the 

 magnetic iron ore of Dielette, Manche : L. Cayeux. Con- 

 clusions as to the mode of formation of the ore are drawn 

 from a micrographic study. — The gasteropods collected by 

 the Charcot Antarctic Expedition : A. Vayssiere. — The 

 structure of the sporal wall of the Myxosporidia : L. Leger 

 and E. Hesse. — A genus of lamellibranchs with multiple 

 mouths : Paul Pelseneer. The genus Lima is charac- 

 terised in its normal condition by having two symmetrical 

 buccal orifices, each of which leads directly into the 

 esophagus.- -X-rays and genital activity: F. Villemin. 

 ■ — The disease of wine (Graisse) : E. Kayser and E. 

 Manceau. — The toxin and antitoxin of cholera : MM. Brau 

 and Denier. The serum of animals which have received 

 sthe toxin under the skin possesses very slight antitoxic 

 power. The antitoxic power of the serum becomes much 

 more marked when the toxin has been injected into the 

 veins. — The laws of muscular elasticity and their applica- 

 tion to energetics : Charles Henry. — Some new pala;onto- 

 logical data on the Devonian of western Ahenet, Central 

 Sahara (expedition of MM. R. Chudeau and E. F. 

 Gautier) : Emile h,iu». — The fauna of the Lower Coal- 

 measures of Baudour (Hainaut) : J. Cornet. — The flora of 

 the same : Armand Renier. — Chalk and clay on the sea 

 floor : J. Thoulet. 



DIARY OF SOCIETIES. 



THURSDAY, March 2 q. 

 Royal Society, at 4.30.— On the Dilatational Stability of the Earth 



Lord Rayleigh, O.M., P.R.S.— On the Observations of Stars made i 



some British Stone Circles. Second Note : Sir J. Norman I.ockyei 



K.C.B , F.R.S.— The Calculation of Ellipsoidal Harmonics : Si 



William D. Niven, K.C.B., F.R.S. 

 Royal Institution, at 5.— Internal 



Hopkinson. 

 Institution of Electrical Engine 



Electrical Equipment of the Aberd; 



Company: -C. P. Sparks.— Electri. 



and Commercially : W. C. Mountair 



nbustion Engii 



Prof. B. 



IS, at 8.— Adjournal Discussion: 

 ■ Collieries of the Powell Duffryn 

 Winding, considered Practically 



Royal It. 

 Zeeman 



FRIDAY, March 30. 

 3. — Recent Progress in Magneto-opti( 



Prof. P. 



SATURDAY, March 31. 

 Royal Institution, at 3. — 'the Corpuscular Theory of Matter: Prof. 



J. I. Thomson, F.R.S. 



MONDA Y, April 2. 

 Society op Arts at 8.— Fire.'Fire Risks, and Fire Extinction: Prof. 



Vivian B. Lewes. 

 Society of Chemical Industry, at 8.— The Ropiness in Flour and 



Bread, and its detection ant' Prevention: E. J. Watkins.— The Riise- 



Herzfeld and Sulphuric Acid Methods for the Determina'ion of the 



Higher Alcohols.— A Criticism : V. H. Veley, F.R.S. 

 TUESDAY. April j. 

 Royal Institution, at s. — The Influence of Geology on Scenery: Dr. 



J. E. Marr, F.R.S. 

 Institution of Civil Engineers, at 3.— The Harbours of South Africa : 



C W . Methven.— Probable Paper: On the Resistance of Iron and 



Steel to Reversals of Direct Stress : Dr. T. E. Stanton and L. Bairstow. 

 WEDNESDAY, April 4. 

 Institution of Civil Engineers, at 8. — Variations in Direction o the 



Wind, and an Instrument for determining them Graphically: B. F. 



Beverley. 

 Geological Society, at 8.— On a Ca=e of Unconformity and Thrust in 



the Coal-measures of Northumberland : Prof. G. A. L. Lebour and Dr. 



|. A. Smythe.— The Carboniferous Succession below the Coal-measures 



in North Shropshire, Denbighshire, andFlintshire : Dr. Wheelton Hind 



and J. T. Stobbs. 

 Entomological Society, at 8. 

 Society of Public Analysts, at 8. 

 Society of Arts, at 8.— Ramie and its Possibilities : Mrs. Ernest Hart. 



NO. 19OO, VOL. 73] 



THURSDAY, April 5. 



Royal Society, at 4.30.— Probable /\r/< ■> ■: On the Physiological Action 

 of a Recenily Discovered African Arrow Poison : Dr. Charle, Bolton. _ 



Chemical Society, at 8.30. — An Improved Apparatus for measuring 

 Magnetic Rotations and obtaining a Powerful Sodium Light : VV. H. 

 Perkin, Sen.— The Rusting of Iron : G. T. Moody.— jn the Determina- 

 tion of Carbon in Soils : A. D. Hall, N. H. J. Miller and N. Harmer — 

 The Electrolysis of the Salts of gp-Dimethylglutaric Acid : I. '-Valker 

 and J. K. Wood.— Bromo- 'and Hydroxy-Derivatives of 0g/3 (3 Tetra- 

 methylsuberic Acid : J. K. Wood.— Some new Orthoxylene Derivatives: 

 G. Stallard.— A new Solvem for Gold. Preliminary Note: J. Moir.— 

 The Molecular Condition in Solution of Feirous Oxalate : a Correction : 

 S. E. Sheppard and C. E. K. Mees. 



Royal Institution, at s.-Internal Combustion Engines: Prof. B. 

 Hopkinson. 



Institution of Electrical Engineers, at 8 — Electrical Equipment of 

 the Aberdare Collieries of the Powell Duffryn Company : C. P. Sparks.— 

 F.lectric Windin? considered Practically and Commercially : W. C. 

 Mountain (Con lusiox of Discussion). 



Linnean Society, at %.— Exhibition: Some Plants new to the Pre-C.lacial 

 Flora of Great Britain: Clement Reid, F.R.S.— Papers : A Second 

 Contribution to the Flora of Africa.— Rubiacese and Composite, Part II. : 

 Spencer Moore.— The Ana'omy of ihe Stem and Leaf of Ifuytsia 

 floribunda, R.Br. : E. J. Schwartz.— Taiwanites, a new Genus of 

 Coni'era; from the Island of Formosa : B. Hayata. 



Civil and Mechanical Engineers' Society, at 8.— Steam Turbines: 

 G. DA. Meynell. 



FRIDA Y, April 6. 



Malacological Society, 

 Genus Dyakia from Slam 

 Descriptions of new Specie 

 S. I. Da Costa.— Note or 

 Further Notes c 



it 8.— On a Species of the Land Molluscan 

 Lt.-Col. H. H. Golwin-Au-ten, F.R.S — 

 of Land Shells fr jm Peru an I Colombia: 

 Swainson's Genus Volutilithes : R. Bullen 

 the Genus Chloritis, with Description of new 

 Species: G. K. Gude.— I'ertio-o fiarccdonlata, Braun, in Holocene 

 Deposits in Great Britain : A. S. Kennard and B. B. Woodward. 

 Royal Institution, at 9.— The Physical Basis of Life: \V. B. Hardy, 



SATURDAY, April 7. 



Royal Institution, at 3. — The Corpuscular Theory of Matter: Prof. 

 J. J. Thomson, F.R.S. 



The Essex Field Club (at Essex Museum of Nattwal History, Stratford), 

 at 6. 30. — Salt-making in Essex, Ancient and Modern : Miller Christy. — 

 Neolithic Man in Epping Forest: F. W. and H. Campion. 



CONTENTS. page 



Stars and Nebulae. By Prof. R. A. Gregory . 505 



British Ascidians. By Dr. W. Garstang 508 



The Metallurgy of Iron and Steel. By A. McWilliam 509 

 Our Book Shelf:— 



Lambert: "Glue, Gelitine, and their Allied Pro- 

 ducts, — C. S 510 



" Wdbbia-Raccolta di Scritti Botanici publicati in 

 occasione del 50° anniversario della Morti di Fillipo 



Barker Webb" 5 10 



Goursat : " A Course in Mathematical Analysis" . . 511 

 Letters to the Editor : — 



Agriculture and the Empire. — M.J. R. Dunstan . 511 

 Sea-sickness and Equilibration of the Eyes. — Alfred 



Sang 511 



Production of an Electrically Conductive Glass. — 



Charles E. S. Phillips 512 



Interpretation of Meteorological Records. — R. T. 



Omond 512 



Oscillation of Flame Cones. — Harold E. Temple ; 



Prof. A. Smithells, F.R.S. . . 512 



Gas for Heating and Lighting Laboratories. — Alex. 



Pardy ; Prof. Vivian B. Lewes . . 513 

 Cooperation between Scientific Libraries. — Dr. Hugh 



Marshall 513 



The Problems of Geology. {Illustrated.') . . . . 513 



The National Physical Laboratory 514 



Notes 515 



Our Astronomical Column : — 



Comet 1906c 518 



Observation of Comet 1905c after Perihelion .... 51S 



New Variable Stars in the Region about 7 Saeittrc 518 



The Supposed Nebulosity around Nova Abulia? No. 2 518 



Some Tests of the Snow Telescope ........ 5'^ 



Studies on the Synthesis of Peptides and Proteids. 



By J. B. C 519 



The Protection of Birds 521 



The Place of Polytechnics in : Education. By Sir 



Norman Lockyer, K.C.B. , F.R.S 521 



University and Educational Intelligence 524 



Societies and Academies 525 



Diary of Societies 528 



