552 



NA TURE 



April 6, 1905 



Bahoti or the " rains insect " (liucella carniola) : E. G. 

 Hill. An oil extracted from this mite is used medicinally 

 by the Mohammedans of Allahabad. Analysis shows that 

 its chief constituent is myristodiolein, with small quanti- 

 ties of stearin, cholesterol and colouring matter. — Con- 

 tributions to Oriental herpetology, ii., notes on the lizards 

 in the Indian Museum, with descriptions of new forms 

 and lists of species recorded from British India and 

 Ceylon, and of specimens collected on Sinkip Island (East 

 Sumatra) by the late Prof. Wood-Mason's collector (part 

 i.) : N. Annandale. The present contribution deals with 

 the collection of Oriental geckos, eublepharids, agamids, 

 slowworms and monitors in the Indian Museum. Three 

 new forms and a doubtful fourth are described, while notes 

 on the distribution and systematic position of a number of 

 others are given. — Customs in the trans-border territories 

 of the North-West Frontier Province : H. A. Rose. A 

 contribution to the customary law of the trans-border 

 tribes on the North-West Frontier of India. — The .'Vgraharis 

 of Sasaram : L. S. S. O'Malley. 



DIARY OF SOCIETIES. 



THURSDAY, Ai'kil 6. 

 ROVAL Society, at 4.30. — On Reciprocal Innervation of Antagonistic 

 Muscles, Seventh Note : Prof. C. S. Sherrington, F.R.S.— The InHuence 

 of Cobra-Venom on the Proteid Metabolism ; Dr. James Scott.— Further 

 Experiments and Histological Investigations on Intumescences, with 

 some Observati ms on Nucle.-ir Dlvi.lon in Pathological- Tissues : Miss 



E. Dale.— On the Toxin-Antito.vin Reaction, with bpeci.il Reference to 

 the Neutralisation of Lysin by Antilysin: J. A. Craw.— On the Natuie 

 of the Silver Reaction in Animal and Vegetable Tissues : Prof. A. B. 

 Macallum. — On Endophytic Adaptation shown by Erysipki: Graiiiinis 

 DC. under Cultural Conditions: E S. Salm>n.— Ovulation and De- 

 generation of Ova in the Rabbit : Walter Heape. 



Chemical Societv, at 8. — The Basic Properties of Oxygen at Low 

 Temperatures. Additive Compounds of the Halogens with Organic 

 Substances containing Oxygen : D. .Mclnto'-h. — Note on the Interaction 

 of Metallic Cyanides and Organic Halides: N. V. Sidgwick.— The 

 Chemical Dynamics of the Reactions between Sodium Thio-ulphate and 

 Organic Halogen Compounds. Part II. Halogen-substituted Acetates : 

 A. Slator.— The Chemical Kinetics of Reactions with inverse Reactions. 

 The Decomposition of Dimethylcarbamtde : C. E. Fawsitt. — The 

 Tautomerism of Acetyl Thiocy.tnate : A. E. Dixon and J. H.awthorne. — 

 A Method of Determining the Specific Gravity of Soluble Salts by 

 Displacement in their own Mother Liquor, and its Application in the Case 

 of the Alkaline Halides : J. V. Buchanan.— The Combination of Mercap- 

 lans with Unsaturated Ketonic Compounds : S. Ruhemann. — A new 

 Formation of Acetylcamphor : M. O. For.ster and Miss H. M. ludd.— 

 Preparation and Properties of 1:4; 5-Trimethylglyoxaline ; H. A, D. 

 Jowett. — Bromomethylheptylketone ; H. A. D. Jowett — On the Exis- 

 tence of a Carbide of Magnesium : J. T. Nance.— The Action of Carbon 

 Monoxide on Ammonia ; H. Jackson and D. N. Laurie. — Is. meric Salts 

 of the lype NR1R2H:,. A Correction. Isomeric Forms of ./-Bromo- and 

 ^f-Chloro-camphorsulphonic Acids : F. S. Kipping.— Isomerism of 

 a-Bromo- and o-Chloro-camphor : F. S. Kipping.— /-Phenylethylamine : 



F. S. Kipping and A. E. Hunter. 



Institution of Ei-ectrical Engineers, at 8. — Discussion of the 

 Report to Council on the International Electrical Congress at St. Louis 

 by W. Duddell, and of Papers on Systems of Electric Units Published in 

 Part clxx. (last is.sue) of the/u-raa/. 



Royal Institution, at 5.— Synthetic Chemistry : Prof. R. Meldola, 

 F.R.S. 



RoNTGEN Society, at 8.15. — Exhibition Evening. 



Linnean Society, at 8. — Intra-axiltary Scales of Aquatic Mono- 

 cotyledons: Prof R. J. Harvey Gibson. — \ further Communication on 

 the Study o( Pelomyxa pitlustris : Mrs. Veley. 



Society of Arts, at 4.30. — The Prospects of the Shan States : Sir J. 

 George Scott. 



Civil and Mechanical Engineers' Society, at 8.— The Design of Con- 

 crete-Steel Beams : W. Noble Twelvetrees. 



FRIDAY. April 7. 



Royal Institution, at 9. — American Industry : Alfred Mosely. 



Institution of Civil Engineers, at 8.— Cofferdams for Dock Use: 

 R. G. Clark.— Bath Corporalion Waterworks Extension : J. R. Fox. 



Geologists' Association, at 8. — The Relative Ages of the Stone Imple- 

 ments of the Lower Thames Valley: M. A. C. Hinton and A. S. Ken- 

 nard. 



SATURDAY AirilB. 



Royal Institution 

 Lord Rayleigh. 



The Essex Field Club, at 6.30. (At Essex Museum of Natural Hi-tory, 

 Stratford). — Twenty-iifth Annual Meeting. — Natural History Museums: 

 F. W. Rudler. 



MONDAY, April 10. 



Institution OF Civil Engineers, at 8.— "James Forrest" Lecture: 

 Unsolved Problems in Electrical Engineering : Colonel R. E. B. Cromp- 

 ton, C H. 



RovAL Geographical Society, at 8 30.— The Problem of the Upper 

 Yangtsc Provinces and their Communications : Colonel C. C. Manifold. 



TUESDAY, KvKii. 11. 

 RovAL Institution, at 5. — Tibet : P. Landon. 

 Institution of Civil Engineers, at 8.- 

 Strengthcning of Early Iron Bridges : W. Ma 



NO. 1849, VOL. 7t"| 



WEDNESDAY, April 11. 

 s, at 8.— The Industrial Resources of the State of Matto 



, Brazil : G. T. Milne 



-Some Controverted Questions of Opti 



THURSDAY, Ap 



Royal Socii 



4.30. — Probable Papers'. A Quantitative Study of 

 carbon uioxiae Assimilation and Leaf-temperature in Natural Illumina- 

 tion : F. F. Blackman and Miss G. Matthaei.- On Colour Virion by 

 Very Weak Light : Dr. G. J. IJurch, F R.S.— On a New Type of Elec- 

 tric Furnace, with a Redetermination of the Melting Pnint of Platinum: 

 Dr. J. A. Harker.- The Refractive Indices of Sulphuric Acid: Dr. 

 V. H. Veley, F.K.S., and J. J. Manky.— (,) The Improved Electric 

 Micrometer: (2) The Amplitude of the Minimum Audible Impulsive 

 Sound : Dr. P. E. Shaw.— On the Intensity and Direction of the Force of 

 Gravity in India: Lieut.-Colonel S. G. Burrard. R.E . F.R.S. 



RovAL Institution, at 5.— Synthetic Chemistry : Prof. R. Meldola, 

 F.R.S. 



Institution of Electrical Fngineers, at 8. — The Alternating Cur- 

 rent Series Motor: F. Creedy.— Discussion of Mr. Bion J. Arnold's 

 address to the joint meeting at St. Louis. 



Institution of Mining and Mhtallusgy, at 8. — The Kedaheg Copper 

 Mines : Gusiav Koller —Refining Gold Bullion and Cyanide Pr.-cipitatcs 

 with Oxygen Gas : T. Kirke Rose.— Wood Gas for Power Purposes and 

 Gas Generator: G. M. Douelas.— Notes on the Prestea Di-tricr, Gold 

 Coast Colony: P. Poore.— Noies on the New Dharwar Gold Field of 

 India: R. O. Ahlers.— The Cause of Border Segregation in some 

 Igneous Magmas: J. Park. 



Mathematical Society, at 5.30- — On Irreducible Jacobi: 

 Six : P. W. Wood— On Fermal's Numbers and the Conv 

 mats Theorem : A. E. Western.— On the Strains that : 

 ing : Prof. A. E. H. Love. 



FR/DAV, April 14. 



Royal Institution, at 9. — The Law of Pressure of Gases below Atmo- 

 sphere : Lord Rayleigh. 



Physical Society, at 8.— On Ellipsoidal Lenses : R. J. Sowter.— (i) The 

 Petermination of the Moment of Inertia of the Maiinrts used in the 

 Measurement of the Horizonial Component of the Earth's Field : (2) 

 Exhibition of a Series of Lecture Experiments illustrating the Proper- 

 ties of the Gaseous Ions produced bv Radium and other Sources : 

 Dr. W. Watson, F.R.S. 



Royal Astronomical Society, at 5. 



Malacological Society, at 8. — Anatomical and Systematic Notes on 

 Horcasia, Trigonephrus, Coriila, Thersites, and Chloritis : Henry A. 

 Pilsbry. — Some Account of the Anatomy of Cassidan'a ritgosa, L. : 

 Alexander Reynell.— Votes on a small Collection of Shells from the 

 Victoria Falls, Zambesi River; H, B. Preston.— Descriptions of Six 

 New Species of Land Shells from South Africa : H. Burnup. 



i of Degree 

 irse of Fer- 

 npany Bend* 



SA TURD A Y, Ap 



Royal Institution, ; 

 Lord Rayleigh. 



d Qi 



CONTENTS. PAGE 



Psychology and Physiology. By W. McD 529 



Radium and Radio-activity. By R. J. S 530 



Oil Fuel 531 



The Dynamics of Chemical Change. By Dr. H. M. 



Dawson 532 



Recent Earthquakes 532 



Our Book Shelf :— 



Lang and Abrahams : " A Gerinan-English Dictionary 

 of Terms used in Medicine and the Allied 



Sciences " 533 



" Regies Internationales de la Nomenclature zoo- 



logique."— R. L 534 



Letters to the Editor: — 



A New Thallium Mineral.— G. T. Prior . . ■ . 534 

 The Legendary Suicide of the Scorpion. — Prof. 



Edward B. Poulton, F.R.S 534 



Propagaiion of Earthquake Waves. — M. P. Rudzki . 534 

 Notes on Stonehenge. V. On the Star Observa- 

 tions made in British Stone Circles. (Illustralid.) 



By Sir Norman Lockyer, KG. B., F.R.S 535 



British Association Geological Photographs. (Illus- 

 tralid.) 53S 



The Society of Arts and the London Institution . 539 



Notes 540 



Our Astronomical Column: — 



Comet 1905 a (Giacobini) 544 



Photography of the Corona without a Total Eclipse . 544 

 Search-ephemeris for Teinpel's First Periodic Comet 



{1S67II). . 545 



Right Ascensions of 2120 Southern Stars 545 



The Iris Diaphragm in .-V^Ironomy 541; 



Constancy of " Siiaik" W:ivc-lengths 545 



Statistics of Variation. Hy F. A. D 545 



Intetrupters for Induction Coils. {Illustrated.) . . . 546 



University and Educational Intelligence . . 547 



Societies and Academies 54S 



Diary of Societies 552 



