372 



NATURE 



[May II, 1911 



The condcntation of /J^-<liincthj'lglycidic ether with brom- 

 acetic ether. — A. d« tchult«n : The crystallographic t-x- 

 amination of sonic silicidcs, txM-ides, and carbides obtained 

 by Henri Moidsan and his pupils. Data arc given for the 

 silicidcs of iron, cobalt, manganese and chromiuin, for 

 alun\iniuin and b«Tyiliwni carbidi^s and for calcium, barium 

 and strontium boridos. — I,. BlarinK*t*m : The production 

 of a new form of tn.iizc by a traumatism. — L6on Pisvon : 

 A new form of stereoscope. This instrument has been 

 designed specially for the physiological study of vision, 

 for the study and treatment of astigmatism, and for 

 ojjhthaimological clinical work. — Rend Cruohet and M. 

 Moulini«r : Pathological conditions induced by aviation. 

 A description of the changes in the arterial pressure and 

 nervous system caused by aviation. The most serious 

 cause of trouble appears to be due to a too rapid descent 

 from a high altitude. — Henri PIdron : The regressive 

 evolution of mnemonic traces. — R. Robinson : The rela- 

 tions between the suprarenal glands with the state of 

 gravidity, and on the use of adrenaline in the vomiting 

 of pregnancy. Two cases of vomiting due to pregnancy, 

 resistant to all ordinary piethods of treatment, were cured 

 by treatment with adrenaline. — E. Bataillon : Experi- 

 mental parthenogenesis in Bm/o vulgaris. — Armand 

 Dohorno : The number of the chromosomes in the 

 parthogenetic larvae of the frog. — A. Railliett G. Moussu, 

 and A. Honry : Researches on the treatment of distoma- 

 tosis of the sheep. Of all the medical agents tried, the 

 only one which gave clear positive results was the ethereal 

 extract of male fern. Four doses of 5 grams appear to 

 be the minimum for success. — MM. Borda* and 

 Touplain : The estimation of phosphorus in milk. A 

 reply to some criticisms of MM. Fleurent and L. Levi. — 

 Alexandre LebedafT : The extraction of zymose. — F. L. 

 Pereira de Sousa : The tidal wave of the great earth- 

 quake of 1755 in Portugal. 



DIARY OF SOCIETIES. 



THURSDAY, May ii. 



Royal Society, at 4.30.-011 a Method of makintr Visible the Paths of 

 lonisine Particles through a Oas : C. T. R. Wilson, F.R.S.— The 

 Vertical Temperature Distribution in the Atmosphere over England, 

 and some remarks on the General and Loc.il Circulation : W. H. Dines, 

 F.R.S. — On some Mineral Constituents of a Dusty Atmosphere: Prof. 

 W. N. Hartley, F.R.S.— The Path of an Electron in Combined Radial 

 Magnetic and Electric Fields: Dr. H. S. Allen.— On the Absolute 

 Measurement of Light— a Proposal for an Ultimate Light Standard : Dr. 

 R. A. Houston.— On Harmonic Expansions: Prof. A. C. Dixon. F.R.S. 



Royal Institution, at 3.— The Optical Properties of Metallic Vapours : 

 Prcf. R. W. Wood. 



Institution of Ei.kctrical Engineers, at 8.— The Driving of Winding 

 Engines by Induction Motors : H. J. S. Heather. 



Mathematical Socety, at 5.30.— Exhibition of a Model of a Deform- 

 able Octahedron : G. T. Bennett.— The Scattering of Light by a Large 

 Conducting Sphere (Second Paper) : J. W. Nicholson. 

 FRIDAY, May la. 



Royal Institution, at 9 —Biology and the Kinematograph : Prof. W. 

 Stirling. 



Royal Astronomical Society, at 5.— Relation of Stars about their 

 Axes : George Forbes.— Parallax of 17 Lyrae C. : F. Slocum.— Positions 

 of Hallev's Comet and of Comet igioa, from Photographs taken at the 

 Khedivial Observatory, Helwiin : H. Knox Shaw.— On the Harvard 

 Eclipses of Jupiter's Satellite IV. : W. de Sitter.— Determination of the 

 Moon's Parallax from Meridian Observations of the Crater Mosting A. : 

 Royal Observatories, Greenwich and Cape of Good Hope. — Occultations 

 observed during the Lunar Eclipse, 1898, December 27 : Walter Heath. — 

 Probable Paper : Discussion of the Greenwich Zenith Tube Observations, 

 1906-9 : A. S. Eddington. 



Malacological Society, at 8.— Some Remarks on the Nomenclature of 

 the Veneridse : Dr. W. H. Dall.— Description of a New Species of Conus 

 from South Africa : G. B. Sowerby. — A Modification in the Form of a 

 Shell {Siphonaria Algesirte) apparently due to Locality : Rev. A. H. 

 Cooke. 



Physical Society, at 8.— Stream Lines Past the Elliptic Cylinder and 

 Magnetic Interpretation : Sir George Greenhill and Col. R. E. Hippisley, 

 —The Method of Constant Rate of Change of Flux as a Standard 

 for Determining Magnetisation Curves of Iron : J. T. Morris and T. H. 

 Langford.— Demonstration of an Electric Thermo Regulator : Prof. H. L. 

 Callendar. 



Institute of Metals, at 8.30.— The Hard and Soft St.ites in Metals : 

 Dr. G. T. Beilby, F.R.S. 



MONDAY, May 15. 



Royal Society of Arts, at 8.— Rock Crystal : its Structure and Uses : 

 Dr. A. E. H. Tutton, F.R.S. 



TUESDAY, May 16. 



Roy AL Institution, at 3.— The Brain and the Hand : Prof. F. W. Mott, 

 F.R.S. 



Royal Anthropological Institute, at 8.15.— River Life and People in 

 Upper India : Percy B. Bramley. 



Royal Statistical Society, at 5— On the Use of the " Normal Crop" 

 as a Standard in Crop Reports ; H. D. Vigor.— Seasonal Fluctuations in 

 Employment m the Gas Industry : F. Popplewell. 



NO. 2167, VOL. 86] 



WRDNRSDAY, Mav 17- 

 Royal Socirrv op Arr*. at B.— Lm Bmm* TcmptfratorM : Vi 



Piclel. 

 Royal Mktbomolocical Stkikty, at 4.— On the Fr«qu«ncy and '.r 



ine of Wet Day* In l»odon: I>r. H. R. Mill and C. Salter.— K';.^ 



.1 . I'i ''.'.jical OlMcrvaiiont for 1910: E. Mawley. 



R OKCOPICAL Society, at 8.— A Method of ViWv 



1 other Organic CelU : I. K. Barnard.— Stritciura! I 



t.r^,,„.,.,i,.i4tatttramfhalut: T. W. Butcher. 



THURSDAY, May 18. 



Royal 5;r)ciKTv, at 4. v).— r»c/v«//c r.if'tt, : Inbreeding in • Sbmle Men 



■'"rence to Coiuiii Marriage : 



\<>tenu. II. On Kdiormuin 



\V. M. BayltM, F.fLS.- 



Oiil). in Frog* deprived of 



their 1 ^miiiuon of Anakcbe 



by ni. Hrown Tick: Dr. A. 



Theilcr.— I he Discxiiiiin.tliuii uf Colour : Dr. F. W. Edridgc-GrMn.— 



On the Direa Guaiacum Reaction given by Plant Estncts: Mim M. 



Wheldale. 

 Royal Institution, at 3.— Air and the Flying Machine. I. The Struc 



ture of the Atmoiphere and the Textnre of Air Currents : Dr. W. N. 



Shaw, F.R.S. 

 RovAL Geographical Society, at 5.— Research Meeting. Principtcaof 



the Construction of Vegetation .Map<i : Dr. C. E. Moss. 

 Institution of Electrical Engineers, at 8.— Am^maiir t»i-'-><"'"- 



Exchange Systems : W. Aitken. 



FRIDAY, Mav 19. 

 Royal Institution, at 9.— Recent Experiments with Invisible Light : 

 Prof. R. W. Wood. 



SATURDAY, May »o. 

 Royal Institution, at 3.— Phases of Bird Life. I. Flight : W. P. 

 Pycraft. 



CONTENTS. PAGE 



The Radium Treatment of Disease. By Dr. A. C. 



Jordan 339 



Elementary Zoology ^40 



Forest Fires ... 



Living Matter and its Functions 



Animal Psychology. By Dr. William Brown . . . 342 



Scale Mosses 343 



Refractory Materials and Products. By William 



Burton 



343 



Bacteriology: General and Special. By R. T. H. 344 



Chemistry for Matriculation. By J. C. P 345 



Our Book Shelf 345 



Letters to the Editor:— 



The Racial Problem in Nubia. — Prof. G. Elliot 



Smith, F.R.S 347 



Inheritance of Row-numbers in Maize Ears. — Joseph 



Burtt-Davy . . 347 



Absorption Markings in "K" Spectroheliograms.— 



J. Evershed 348 



Calendar Reform.— Alex. Philip ; H. C. P. ... 348 



A Zenith Rainbow.— K. C. Kreyer ; E. Gold . . 349 



Daylight Saving ! — " The Voice of the Sluggard " 349 



Daylight and Darkness 349 



The New Encyclopaedia of Sport, (Illustrated.) By 



R L 351 



Wheats and Flours 352 



Oriental Silverwork. (Illustrated) 353 



Notes 354 



Our Astronomical Column: — 



Meteoric Fireballs and Meteors 359 



The T6tal Eclipse of the Sun 359 



Spark Spectra of Calcium and Hydrogen in a Mag- 

 netic Field 359 



The Solar Constant . 359 



Photographic Observations of Solar Prominences . . 360 



The Movement of Stars of the Orion Type 360 



Ephemeris for Encke's Comet near Perihelion, 191 1 . 360 

 The Cat-inia Observations of Sun-spots and Faculse, 



1910 .... 360 



The Royal Photographic Society's Exhinition . . 360 

 Geological Work in British Lands. III. — In 



Canada. (Illustrated.) By G. A. J. C 361 



Pressure in Stellar Atmospheres. By Charles P. 



Butler 362 



Recent Investigations on Soil Fertility. By Dr. 



E J. Russell 363 



Museum Work in India and Africa 364 



Report of the Board of Education 365 



The British Science Guild 366 



University and Educational Intelligence 369 



Societies and Academies 370 



Diary of Societies ".; 



