1 5 6 



NATURE 



[April io. 1913 



J. S. S. Brame. Fourth edition, revised. Pp. xvi + 

 576 + vii plates. (London : E. Arnold.) 155. net. 



Canada. Department of Mines. Mines Branch. 

 Pyrites in Canada. By Dr. A. VV. G. Wilson. Pp. 

 xf+202. (Ottawa: Government Printing Bureau.) 



The Sling. By W. L. Jordan. Second edition. 

 Pp vi + 431. (London : Simpkin and Co., Ltd.) 

 7s. 6d. net. 



Mimikrv und verwandte Erscheinungen. By Dr. 

 A. Jacobi.' Pp. ix + 215. (Braunschweig: F. Vieweg 

 und Sohn.) 



The Geologv and Mining Industry of the Kinta 

 District, Perak, Federated Malay State's, with a Geo- 

 logical Sketch Map. By J. B. Scrivenor. Pp. viii-r 

 .10 + 20 plates. (Kuala Lumpur: F.M.S. Government 

 Printing Office.) 3 dollars. 



Annals of the South African Museum. Vol. viL, 

 part 6, pp. 353-366. Vol. xi., part 5, pp. 321-463. 

 (London : West, Newman and Co.) is. and 15s. 

 respectively. 



Cours de Chimie Organique. By Prof. F. Swarts. 

 2^ edition. Pp. 754. (Gand : A. Hoste ; Paris: A. 

 Hermann et Fils.1 15 francs. 



Legons sur les Hypotheses Cosmogoniques. By H. 

 Poincare. Seconde edition. Pp. lxx + 294. (Paris: 

 Hermann et Fils.) 12 francs. 



Cours de Physique Generale. By H. Ollivier. Tome 

 second. Pp. 295. (Paris : A. Hermann et Fils.) 10 

 francs. 



Principia Mathematica. By Dr. A. N. Whitehead 

 and B. Russell. Vol. iii. Pp. x + 4qi. (Cambridge 

 Universitv Press.) 2 is. net. 



The Carnegie Foundation for the Advancement of 

 Teaching. Seventh Annual Report of the President 

 and of the Treasurer. Pp. vi + 194. (New York 

 City.) 



Ministry of Finance. Survev Department, Egypt. 

 The Geosjrnohv and Geology of South-Fastern Ejrvnt. 

 By Dr. J. Ball. Pp. xii + 304 + xxviii plates. (Cairo: 

 Government Press.) 40 P.T. 



DIARY OF SOCIETIES. 



THURSDAY. April io. 

 Roval Society, at 4.50.— The Effect of lability (Resilience) of the Arterial 

 Wall on the Blood Pressure and Puke Curve : T. Hill and M. Flack.— 

 The Nature of the Toxic Action of the Electric Discharge upon Bacillus 

 Prof. I. H. Priestley and R. C. Knight. -Some 

 1 the Phenomena of "Clot" Formations. I. The Clotting 

 . Schryver.— (0 Morphology of Various Strains of the 

 using 'Disease in Man in Nyasaland, II. The Wild 

 Stnin ; 1 2) Morphology of Various Strains of the Trypanosome 

 causing Disease in Man in Nvasaland. III. The Wild (.V,*.,v/»,7 u;<»s!t,ius 

 Strain ; (-.) Inactivity of G/osshm morsitans in Nyasaland : Surg.- 

 General Sir D. Bruce, Majors D. Harvey and A. E. Hamerton, and 

 Lady Bruce. 

 Royal Institution, at -.-Colour in Flowers: Dr. E. Frankland 





of Mill. : 

 Trjpano 



Machines (Self-starting Synchronous Moto 

 Dr E. Rosenberg. 



Concrete Institute, at 7.30.— Structural Engineering: E. F. Etchells. 

 FRIDAY. April ii. 



Royal Institution, at 9 —The Winds in the Free Air : C. J. P. Cave. 



Royal Astronomical Society, at s.-Observations of the Variable Star 

 07.1010 Cvgni: E. E. Barnard. -A Discussion of the EmpiricalTerms 

 in the Moon's Longitude : E. W. Brown.— Some Types of Prominences 

 associated with Sun-spots: Mrs. M. A. Evershed. — Probable Papers: 

 The Short Period Variable SW Draconis : C. Martin and H. C. Plummer. 

 —Preliminary Discussion of Galactic Motions of Bright Stars of Type I, 

 with Some Additional Material (Stellar Mnti.ns, No. 5): H. C. Plummer. 

 — Sun-spots and Terrestrial Magnetic Phenomena, i8qS-iqii ; Sun-spot 

 Areas. Magnetic Storms, and the Sun's Corona : Rev. A. L. Cortie.— The 

 Distribution in Space of the Stars of Carrington's Circumpolar Catalogue 

 (Second Paper): F. W. Dyson.— A Suggested Substitute for Bode's Law : 

 Miss M. A. Blagc. 



Physical Society, at 8.— Some Errors in Magnetic Testing Due to Elastic 

 Strain : A. Campbell and H. C. Booth.— Note on Kathodic Spluttering : 

 Dr. G. W. C. Kaye. 



MONDAY, April 14. 



Royal Geographical Society, at 8.30. 



Royal Society of Arts, at S-— Aeronautics : Prof. J. E. Petavel. 



TUESDAY, April 15, 

 Royal Institution, at 3. — The Heredity of Sex and So 

 Problems : Prof. W. Bateson. 



Cognate 



126;, vol. 91] 



Illuminating Engineering Society, at 8.— Standard Clauses for In- 

 clusion in a Specification of Street-lighting : A. P. Trotter. 



Royal Statistical Society, at 5.— Gleanings from the Census of Pro- 

 duction Report : A. \V. Flux. 



Institution of Civil Engineers, at 8.— Coastal Sand-travel near Madras 

 Harbour: Sir F. J. E. Spring. 



WEDNESDAY, April 16. 



Royal Meteorological Society, at 7.30. -The Vertical Distribution of 

 Temperature in the Atmosphere, and ttie work required to alter it :. 

 W. H. Dines.— Report on the Phenological Observations for 1912 : J. E. 

 Claik and K. H. Hooker. — Meteorological, Electrical and Magnetic 

 Observations during the Solar Eclipse, April 17. 1912 : R. Corless. 

 G. Dobson, and Dr. C. Chree. 



Royal Society of Arts, at 8.— The Physical Properties of Clay: W. C. 

 Hancock. 



THURSDAY, April 17- 



Royal Society, at 4.30.— Probable Papers: The Luminosity Curves of 

 Persons having Normal and Abnormal Colour Vision : Dr. W. Watson.— 

 A Fluorescence Srectrum of Iodine Vapour: Prof. J. C. McLennan. — 

 The Relation between the Crystal-symmetry of the Simpler Organic Com- 

 pounds and their Molecular Constitution. I. : Dr. W. Wahl.— The 

 Purification of Phosphoius Pentoxide for Use in High Vacua: J. J. 

 Manley. 



Royal Institution, at 3.— The Progress of Hittite Studies. I. Recent 

 Explorations : Prof. J. Gaistang. 



Institution of Mining and Metallurgy, at 8. 



Koyal Society of Arts, at 4.30.— The Burma Oil Fields : N. G. Cholmeley 

 FRIDAY, April 18. 



Royal Institution, at 9.— Applications of Polarised Light : Dr. T. M. 



Institution of Mechanical Engineers, at 3.— Presidential Address.— 

 Discussion : Volute Chambers and Guide-passages for Centrifugal Pumps : 

 Prof. Gibson. 



CONTENTS. page. 



The Heritable Results of Changed Nurture. By 



J. A. T 131 



The Work of G. von Reichenbach 131 



Pure and Applied Chemistry. By G. T. M 132 



The Flow of Subterranean Waters 134 



Our Bookshelf 134 



Letters to the Editor: — 



Antarctic Barometric Pressure. — Dr. George C. 



Simpson 135 



X-Ray Spectra. ( With Diagram.) — E. A. Owen; 



G. G. Blake 135 



X-Rays and Crystals.— Prof. T. Terada . ... 135 



Fish-eating Habits of a Spider. — E. C. Chubb . . . 136 



A Detonating Daylight Fireball. — E. G. Fenton . . 136 

 On the Gain of Definition obtained by Moving a 



Telescope.— G. W. Butler 137 



Noithern Methods of Burial in the Iron Age. {Illus- 

 trated.) 137 



Migrations of Birds 13& 



London Wells 139 



The Lister Memorial Fund 139 



Notes 140 



Our Astronomical Column : — 



Nova Geminorum No. 2 144 



Light -changes of o Ononis 144 



Photographs of Comet Brooks (19111) 144 



Franklin Adams Chart of the Sky 145 



A Cheap Form of Grating Spectrograph 145 



Khedivial Obseryaiory, Ilelwan 14$ 



The Development of the Paiasite of Indian Kala- 



azar. By Prof. E. A. Minchin, F.K.S 145 



New Zealand Vegetation. By F. C 146 



Palaeozoic and Other Echinoids. By H. L. H. . . . 147 



Chemistry of the Sugars. By E. F. A 148 



Gyrostats and Gyrostatic Action. {Illustrated.) By 



Prof Andrew Gray, F.R.S 14S 



University and Educational Intelligence 153 



Societies and Academies . . 154 



Books Keceived ... 155 



Diary of Societies . . . 156 



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