484 



NATURE 



[March 14, 1901 



with magnesium-methyl iodide, gives a propenyl anisol and a 

 polymer. The composition of the ketone formed from this on 

 hydrolysis leads to the conclusion that anethol possesses a 

 propylenic chain. — On the phenylhydrazones of glucose and 

 their multirotation, by MM. L. J. Simon and H. Benard. — A 

 general method for the synthesis of the naphthenes, by MM. 

 Paul Sabatier and J. H. Senderens. At 170° to 200° all the 

 hydrocarbons tried were readily hydrogenised by reduced nickel. 

 Details are given of the preparation of the hexahydro-com- 

 pounds of toleune, orthoxylene and its meta- and para-isomers, 

 ethyl benzene, mesitylene, pseudocumene and propylbenzene. 

 ■ — The specific and latent heat of fusion of ethylene glycol, by 

 M. de Forcrand. — On the constitution of gentianose, by MM. Ed. 

 Bourquelotand H. Herissey. — The treatment by o.xygen at atmo- 

 spheric pressure of persons poisoned by carbon monoxide, by M. N. 

 Grehaut. The elimination and disappearance of the poison is 

 considerably accelerated by the use of oxygen, which thus 

 becomes essential in the treatment of cases of carbon monoxide 

 poisoning. — The analogies between the diastatic actions of 

 colloidal platinum and those of organic diastases, by M. G. 

 Bredig. — The coagulating properties of mucus and its origin and 

 -consequences, by MM. Charrin and Moussu. — On a differential 

 histochemical reaction of leucocytes and on the experimental 

 production and the nature of the chromatophile granulations of 

 its cells, by M. Henri Stassano. — New observations on the 

 organisation of the Gasteropods, PI. Qiioyana and PL Beyrichi, 

 by MM. E. L. Bouvier and H. Fischer. — On the different cells 

 of the ovary which intervene in the formation of the egg in 

 ansects, by M. A. Lecaillon. — On the mechanism of the propul- 

 sion of the tongue in amphibians, by M. Marcus Hartog. — On 

 the geotropism of the roots of the vine, M. J. M. Guillon. — On 

 the discovery of a glossopterian flora and of the reptiles Par- 

 eiasattrus and Dicynodon in the upper Permian deposits of the 

 -north of Russia, by M. V. Amalitzky. — The tertiary and quater- 

 nary deposits of the valley of Bellegarde, by M. H. Douxami. 



DIARY OF SOCIETIES. 



THURSDAY, March 14. 

 JiOVAL Society, at 4.30. — The Action of Magnetised Electrodes upon 

 Electrical Discharge Phenomena in Rarefied Gases : C. E. S. Phillips. — 

 The Chemistry of Nerve-degeneration : Dr. Mott, F.R.S., and Prof. 

 Halliburton, F.R.S. — On the lonisation of Atmospheric Air : C. T. R. 

 Wilson, F.R.S. — On the Preparation of Large Quantiiies of Tellurium : 

 E. Matthey. 

 ^IRovAL Institution, at 3. — Greek and Roman Portrait Sculpture: Prof. 



Percy Gardner. 

 Mathematical Society, at 5.30.— On the Composition of Group-Charac- 

 teristics: Prof. Burnside, F.R.S. — On the Use of Cauchy's Principal 

 Values in the Double Limit Problems of the Integral Calculus : G. H. 

 Hardy. — Some Algebraical Identities of Simple Arithmetical Applica- 

 tion : Prof. Elliott, F.R.S. 

 Society of Arts (Indian Section), at 4.30. — The Growth and Trend of 

 Indian Trade— a Forty Years' Survey : H. J. Tozer. 

 . I.vsTiTUTiON of Electrical Engineers, at 8. — Some Notes on Poly- 

 phase Substation Machinery : A. C. Eborall. 



FRIDAY, March 15. 

 Royal Institution, at 9. 

 . Institution OF Mechanical Engineers, at 8. — Combined Trolley and 

 Conduit Tramway Systems : A. N. Connett. 

 Epidemiological Society, at 8.30. — The Enteric Fever Mortality in 

 /Copenhagen from 1828-1898 : Dr. N. P. Schierbeck. — The Effect of 

 Sewerage and Water Supply upon the Behaviour of Enteric Fever in 

 Buenos Ayres : Dr. J. T. R. Davison. 



SATURDAY, March 16. 

 VHoval Institution, at 3. — Sound and Vibrations: Lord Rayleigh, F.R.S. 



MONDAY, March 18. 

 : Society of Arts, at 8. — Electric Railways: Major P. Cardew. 

 i-RoYAL Geographical Society, at 4.30. — The Topography of South Vic- 

 toria Land : L. C. Bernacchi. 

 Victoria Institute, at 4.30. — Religion and Art: Rev. T. Hunter 



Boyd. 

 .Camera Club, at 8.15. — Discussion on Panoramic Photography. 



TUESDA Y, March 19. 

 Royal Institution, at 3. — The Cell as the Unit of Life: Dr. A. Mac- 



fadyen. 

 Zoological Society, at 8.30. — On New or Imperfectly-known Ostracoda, 

 chiefly from a Collection in the Zoological Museum, Copenhagen : Dr. 

 G. S. Brady, F.R.S. — On Lemur tiiongoz &nd L. rubriventer ; Dr. C. I. 

 Forsyth Major. — On the Hymenoptera collected in New Britain by Dr. 

 Arthur Willey : P: Cameron. 

 Institution of Civil Engineers, at 8.— The ./Esthetic Treatment of 



Bridge Structures: J. Husband. 

 Mimeralogical Society, at 8. — Notes on an Occurrence of Minerals 

 at Haddam Neck, Connecticut, U.S.A. : H. L. Bowman. — On Calaver- 

 ite from the Cripple Creek District, Colorado, U.S.A. : G. F. Herbert 

 Smith. — On the Arrangement of the Chemical Atoms in ^Boracite and 

 Cassiterite : W. Barlow. 

 Royal Statistical Society, at 5.— Results of State, Municipal, and 

 -Organised Private Action on the Housing of the Working Classes in 

 London and in other Large Cities in the United Kingdom : Dr. John F. 

 J. Sykes. 



NO. 1637, VOL. 63] 



Royal Photographic Society, at 8. — Photographing Stained Glass by 

 the Three-colour Process: Chas. B. Howdill. 



WEDNESDAY, March 20. 



Society of Arts, at 8. — Evolution of Form in English Silver Plate : 

 Percy T. Macquoid. 



Geological Society, at 8. — On a Remarkable Volcanic Vent of Tertiary 

 Age in the Island of Arran, enclosing Mesozoic Fossiliferous Rocks : 

 B. N. Peach. F.R.S., W. Gunn, and E. T.Newton, F.R.S.— On the 

 Character of the Upper Coal Measures of North Staffordshire ; their 

 Comparison with those of Denbighshire, South Staffordshire, and Notting- 

 hamshire ; and their Relation to the Productive Series : W.ilcot Gibson. 



Anthropological Institute (Albemarle Street), 'at 8. — Joint Meeting 

 with the Folklore Society. — Sand Ropes and other Futile Tasks : G. M. 

 Godden. 



Royal Meteorological Society, at 7.30. — Climate, and the Effects of 

 Climate : Dr. Hugh Robert Mill. 



Royal Microscopical Society, at 8. — The Metallography of Iron and 

 Steel : Wm. H. Merrett. 



Institution of Mining and Metallurgy, at 8. — Annual General 

 Meeting. — Followed by : Ihe Electric Power Station at the Pierrefitte 

 Mine : E. Henry Davies.— (i) Note on Smelting Lead-Copper Ore ; (2) 

 Note on Lead Assaying : P. R. Robert. 



THURSDAY, March 21. 



Royal Society, at 4.30.— Studies in Visual Sensation (Croonian Lec- 

 ture) : Prof C. Lloyd Morgan, F.R.S. 



LiNNEAN Society, at 8. — On the Intestinal Tract of Birds, and the Valua- 

 tion and Nomenclature of Zoological Characters : P. Chalmers Mitchell. 



Chemical Society, at 8. — Researches on Morphine, Part II : S. B. 

 Schryver and F. H. Lees. — The Constitution of Pilocarpine, Part II.: 

 H. A. D. Jowett. — Note on the Latent Heats of Evaporation of Liquids : 

 Holland Crompton.— (i) Action of Dry Silver Oxide and Ethyl Iodide 

 on Benzoylacetic Ester, Desoxybenzoin, and Benzyl Cyanide ; (2) Alkyla- 

 tion of Acylarylamines : G. D. Lander. 



Camera Club, at 8.15. — Yorkshire Caves and Waterfalls: T. C. Hep- 

 worth. 



FRIDAY, March 22. 



Royal Institution, at 9.— Some Recent Work on Diffusion : Dr. Horace 

 Brown, F.R.S. 



Physical Society (University College, Gower Street), at 5.— On the 

 Expansion of Silica: Prof. Callendar, F.R.S.— The Spectroscopic Appa 

 ratus at University College : Dr. E. C. C. Baly. 



Institution of Civil Engineers, at 8. — The Hunslet Railway and 

 Bridge over the River Aire : O. L. McDermott. 



SATURDAY, March 23. 

 Royal Institution, at 3. — Sound and Vibrations :Lord Rayleigh, F.R.S 



CONTENTS. PAGE 



A Manual of Medicine . . 461 



A New Classification of the Reptiles. By G. A. B. 462 

 Our Book Shelf:— 



Weathers : " A Practical Guide to Garden Plants " . 463 

 Classen : " Ausgewahlte Methoden der Analytischen 



Chemie."— J. B. C. ........... 463 



Dufet : " Recueil de Donnees numeriques Optique " . 464 

 Letters to the Editor. — 



Apatite in Ceylon.— Prof. A. H. Church, F.R.S. . 464 

 Maps in Theory and Practice.— Prof. J. D. Everett, 



F.R.S 464 



Early Observations of Volcanic Phenomena in Au- 



vergne and Ireland. — Prof. Granville A. J. Cole 464 

 Probability— James BernouUi's Theorem. — Prof. J. 



Cook Wilson 465 



A Tree Torn by Lightning. {Illustrated.)— 'Percy E. 



Spielmann . 466 



Adaptation of Instinct in a Trap-door Spider. — R. I. 



Pocock 466 



Protective Markings in Cats.— Frank E. Beddard, 



F.R.S 466 



Further Observations on Nova Persei. ( l^ith 



Diagram.) By Sir Norman Lockyer, K.C.B., F.R.S. 467 

 Mr. Borchgrevink's Antarctic Expedition. {Illus- 

 trated.) . . ... 468 



The Total Eclipse of the Sun, May 18, 1901, ( With 



Map.) By A. Fowler 470 



Red Rain . .' 471 



Dr. G. M. Dawson, C.M.G., F.R.S 472 



Notes 473 ■ 



Our Astronomical Column :— || 



Nova Persei 477 



Co-operation in Observing Variable Stars 477 



Dimensions of the Saturnian System 477 



Hydrogen in Air. By A. S 478 



Scientific Agriculture in the United States .... 479 



University and Educationallntelligence 480 



Scientific Serials 481 



Societiesand Academies 481 



Diary of Societies 484 



