NATURE 



[May i, 19 1 3 



Earthwork Haul and Overhaul, including Economic 

 Distribution. By J. C. L. Fish. Pp. xiv+ 165. 

 (New York: J. Wiley and Sons; London: Chapman 

 and Hall, Ltd.) 6s. 6d. net. 



DIARY OF SOCIETIES. 



THURSDAY, May i. 

 oval Society, at 4.— Election of Fellows. At 4.30.— The Capacity for 

 Heat of Metals at Different Temperatures : Prof. E. H. Griffiths and 

 Ezer Griffiths.— The Transition from the Elastic to the Plastic State 

 in Mild Steel: A. Robertson and G. Cook.-Studies of the Processes 

 Operative in Solutions. XXVIII. The Influence of Acidson the Rotatory 

 Power of Cane Sugar, of Glucose and of Fructose : F. P. Worley.— The 

 Attainment of High Potentials by the Use of Radium : H. G. J. Moseley. 



1 passing through Mat 



111. Cults 



-The Decrease in Velocity of a Particl 

 Marsden and Dr. T. S. Taylot. 



Royal Institution, at 3. — The Progress of Hittite Stud 

 of Northern Syria : Prof. J. Garstang. 



Institution of Electrical Enginee 

 static System for the Measurement 

 Rayner, and A Kinnes. 



Linnean Society, at S.— The Structure of the Wood of East Indiar 

 Species of Pinus : Prof. P. Groom and W. Rushton.— Branching Speci 

 mens of Lyginodendron oldhainium. Will : Dr. Winifred Brenchley 

 —A Problem in Weismannism : A. C. F. Morgan.— Note on Sphenopu. 

 marsupialis: Mrs. L. J. Wilsmore. — Polychana of the Indian Ocean 

 with some Species from the Cape Verde Islands— The Serpulida;, with : 

 Classification of the Genera Hydroidesand Eupomalus: Miss Helen L. M 

 Pixell.— Report on the Arachnida of the Seychelles: S. Hirst.— Gypsim, 

 plana. Carter: Miss Marjorie Lindsay.— Nitidulz;, Heterocidae: A 

 Grouvelle.— Pselaphida: de I'Archipel des Seychelles: A. Raffray.- 

 Anthribida: of the Seychelles: Dr. K. Jordan. — Hispinae from the Sey 

 chelles : S. Maulik. 



FRIDAY, May 2. 



Royal Institution, at 0.— Blood Parasites : H. G. Plimmer. 



Geologists' Association, at S.— The Farnham Gravel Beds in Relation tc 



Palaeolithic Ma 



H. Bury. 



SATURDAY, May 3. 

 British Psychological Society, at 3.30.— Notes on a Case of Morpho- 



111. mi. 1 : Dr. F. Aveling.— Wonder, Fasc'nation, and Curiosity: Prof. 



Carveth Read.— A New Tachistos< ope : Prof. C. Spearman. 

 Essex Field Club (at the Essex Museum of Natural History, Stratford), 



at Annual Meeting. — Dalyellia diadema, a Turbellarian New to 



Britain : H. Whitehead.— Prehistoric Art : S. Hazlledine Warren. 



MONDA Y, May 5. 

 17.30.— Tidal Waters ai 



l Source of Pow 



C. A. 



Society of Engineers. 



Battiscombe. . . . . 



Royal Society of Arts, at 8.— Antiseptics and Disinfectants. : Dr. D. 

 Sommerville. 



Royai Geographical Society, at 8.30.— Frontier Work on the Bolivia- 

 Brazil Boundary : Capt. H. A. Edwards. 



Aristotelian Society, at 8. —The Notion of thelruth in Bergson s T heory 

 of Knowledge : Miss L. S. Slebbing. 



Society of Chemical Industry, at 8.— The Methods and Apparatus used 

 in Petroleum Testing. II. Viscometry: W. F. Higgins.-d) The Ore 

 Deposits of Hu-Nan and Hu-Peh ; (2) Experiments on the Hydro- 

 metallurgical Treatment of Slimes: W. R. Schoeller.— Hydrazinel 

 Nitrate : W. R. Hodgkinson. 



TUESDAY, May 6. 



Royal Institution, at 3.-d) Recent Physiological Inquiries: (2) Equi- 

 librium and the Sixth Sense : Prof. W Stirling. 



Zoological Society, at 8. 3 o.-Contnbutions to the Anatomy and Sys- 

 tematic Arrangement of the Cestoidea. X. Two Species of Tapeworms 

 from Genettadongolana :~Dx. F. E. Beddard.— Pacific Salmon :an Attempt 

 to Evolve something of their History from 

 J. A. Milne.— Note 

 Haddon.— Fieldobs 



Royal Anthropological Institute, at 8.15.— Some Recent Work on 

 Post-glacial Geology and Anthropology : Rev. Dr. A. Irving. 



Victoria Institute, at 4.40.— The Origin of Life : What do we know of it I : 

 Prof. G. Sims Woodhead. ..„_.. 



R8NTGEN Society, at 8.15.— Theory and Practice in Ray Therapeutics. 

 Dr. H. Johnson.— Demonstration of a NewX-Ray Couch : Dr. Hampson" 



WEDNESDAY, May 7. 



Society of Public Analysts, at 8.— A New Apparatus for Maintaining 

 Constant Temperatures : F. H. Dupre and P. V Dupre. -The Propor- 

 tionate Determination of Cocoanut Oil and Palm kernel I hi in Mixtures : 

 H R Burnett and C. Revis.— The Composition of Milk. — H. D. 

 Richmond.— Examination of the Oils from Manilwt ceara and Funtuitna 

 elastica and a Comparison of their Properties with those of Linseed and 

 Hevea Oils ■ Dr. Rideal and L. H. D. Acland.— The Recovery of Iodine 

 from Residues : H. W. Gill. . 



Aeronautical Society, at 8.30.— Atmospheric Waves. Eddies and Vor- 



" tices: Col. H. E. Rawson, C.B., R.E. 



Royal Society of Arts, at 8.— Life-saving at Sea : A Welin. 



Entomological Society, at 8.— Pupal_ Coloration in Pa/ 



Examination of their 

 Petipatoides "Moodivardii, Bouvier : Kathleen 

 the Enemies of Butterflies in Ceylon : 



nd the Larval Habits of thi 

 Meyr.' : J. C. F. Fryer. 

 •■araday Society, at S.— (1) A Re-det 

 ,.f Aluminium; (2) The Density of Alum 

 Potential due to Liquid Contact. III. : Di 

 Gilchrist.— Note on the Electrolytic Detei 

 containing Nitric Acid : Elizabeth Gilchri: 

 New Experiments on Colloids : T. A 

 J. W. Richards. 



NO. 2270, VOL. 91] 



rid Moth Mela 





of the Electric Modulus 

 ium : Dr. F. I. Brislee.— The 

 A. C. Gumming and Elizabeth 

 ination of Copper in Solutions 

 t and Dr. A. C. Gumming. — 

 Coward.— Overvoltage : Prof. 



Geological Society, at S.— 1 he Bathortian Rocks of the Oi f d District : 

 M. Odling.— The Petrology of the Kalgoorlie Goldfield (Western Aus- 

 tralia) : J. A. Thomson. 



THURSDAY, May 8. 



Royal Society, at 4.30.— Probable Papers : The Various Inclinations of ihe 

 Electrical Axisof the Human Hear! : A. D. Waller.— Trypanosome Diseases 

 of Domestic Animals in Nyasaland. 111. : Trypanosoma pecorum : Surg.- 

 Gen Sir D. Bruce, Major D. Harvey, Major A. E. Hamerton, and Lady 

 Bruce.— The Excystatlon of Colpoda cvcuUis from its Resting Cysts and 

 the Nature and Progenies of the Cyst Membranes : T. Goodey.— The 

 Experimental Hybridisation of Echinoids : C. Shearer, W. de Morgan, 

 and H. M. Fuchs.— The Action of Radium Ravs upon the Cells of Jensen's 

 Rat Sarcoma : Dr. S. Russ and Dr. Helen Chambers. 



Concrete Institute, at 7.30. — Shear and Problems arising therefrom: 

 H. K. Dyson. 



FRIDAY, May 0. 



Royal Institution, at 9.— Life History of a Water Beetle : F. B. Browne. 



Royal Astronomical Society, at 5. 



Royal Institution, 

 H A. Humphrey. 



SATURDAY. May 10. 

 at 3. — Humphrey Internal Combustion Pumps 



CONTENTS. page 



The Carbonisation of Coal. By Sir T. E. Thorpe, 



C.B., F.R.S 209 



The Training of Goldsmiths. By Ernest A. Smith 210 



Gas, Oil and Petrol Engines 210 



Comparative Biology 211 



Our Bookshelf 212 



Letters to the Editor: — 



Atmospheric Electrification during Dust-storms. — 



Prof. V. H. Jackson 213 



X- Rays and Crystals. — Prof. T. Terada 213 



The Use of Alcyonarians as Money. — Dr. James 



Ritchie 213 



Mechanically-formed Grikes in Sandstone. (Illus- 

 trated.) — Cecil Carus-Wilson 214 



Gain of Definition obtained by Moving a Telescope. 



Prof. E. E. Barnard 214 



A Brilliant Meteor on April 23. — William E. 



Rolston 215 



Spectacles for Use with Observing Instruments. — 



J. W. Scholes 215 



The Report of the Commission on University Edu- 

 cation in London 215 



Recent Hydrographic Investigations. By J. J. . . . 217 



South African Institute for Medical Research . . . 21S 

 Education of the Auditory Centres. By Prof. 



John G. McKendrick, F.R.S 218 



Natural History in Ceyion ... • 219 



Notes 220 



Our Astronomical Column : — 



Astronomical Occurrences for May ........ 225 



The Sun's Polar and Equatorial Diameters 225 



United States Naval Observatory 225 



Distribution of Spectroscopic Double Stars 226 



Jade in Chinese Secular Life and Religion. (Illus- 

 trated.) By Dr. A. C. Haddon, F.R.S 226 



Technical Education in India ■ 227 



Researches in Radio-Activity. By F. S 228 



Scientific Work of the Central Chemical Laboratory 



of the Italian Customs 229 



The Hydrometer as an Instrument of Precision . . 229 



German Meteorological Reports 230 



Ornithological Notes 230 



Promotion of Research by the Carnegie Institution 



of Washington 230 



University and Educational Intelligence 232 



Societies and Academies 233 



Books Received 235 



Diary of Societies 236 



Editorial and Publishing Offices : 



MACMILLAN & CO., Ltd., 



ST. MARTIN'S STREET, LONDON, W.C. 



Advertisements and bu 



iness letters to be addressed to the 

 Publishers. 



Editorial Communications to the Editor. 

 Telegraphic Address: Phusis, London. 

 Telephone Number : Gerrard 8830. 



