456 
NATLORLE 
[Marcu 10, 1904 
emitting the rays, which can pass through aluminium and 
show the other properties of the n-rays.—On the pigment of 
the suprarenal capsules: C. Gessard. The chromogen of 
the suprarenal capsules, in the colourless state which results 
from the absence of oxygen, is the product of the action of 
ityrosinase on tyrosine. It becomes coloured on exposure to 
the air.—The action of the rays given off by phosphorescent 
calcium sulphide on the lactic fermentation: Charles 
Richet.—The mechanism of the movement of the wing in 
insects: Lucien Bull. It has been shown by Marey that 
the trajectory described by the end of the wing of an insect 
is a lemniscate, and has suggested that the deviation from 
a straight line is due to the resistance of the air. This view 
is now experimentally confirmed.—On the lignification of 
the subterranean organs of some plants in Alpine regions : 
André Bauphiné.—On the morphological phenomena of 
germination, and on the structure of the plantule in palms: 
C. L. Gatin.—On the hibernation of the mildew of the 
vine: G. de Istvan fi. 
DIARY OF SOCIETIES. 
THURSDAY, Marcu 10. 
Roya Society, at 4.30.—On Electric Resistance Thermometry at the 
Temperature of Boiling Hydrogen: Prof. J. Dewar, F.R.S.—A Study 
of the Radio-activity of certain, Minerals ard Mineral Waters: Hon. 
R. J. Strutt.—Some Uses of Cylindrical Lens-Systems: G. J. Burch, 
F.R.S. 
Rovat Instirurion, at 5.—Electrical Methods of Measuring Tempera- 
ture: Prof. H. L. Callendar, F.R.S. 
MATHEMATICAL SociE1y, at 5.30.—On Inner Limiting Sets of -Points: 
Dr. E. W. Hobson.—On the Unique Expression of a Quantic of any 
Order in any Number of Variables with an Application to Binary Per- 
petuants: Mr. P. W. Wood.—The Derivation of Generalised Bessel 
Coefficients from a Function Analogous to the Exponential: Rev. F. H. 
Jackson —Illustrative Examples of Modes of Decay of Vibratory Motions : 
Prof. A. E. H. Love. 
INSTITUTION OF ELECTRICAL FNGINEERS, at 2.—The Railway Electrifica- 
tion Problem and its Probable Cost for England and Wales: F. F. 
Bennett.—The Rated Speed of Electric Motors as affecting the Type to | 
be Employed : H. M. Hobart. 
Society or Arts, at 4.30.—China Grass ; its Past, Present, and Future : 
Frank Birdwood. 
FRIDAY, Marcu 1. 
Rovat INnsTItuTION, at 9g.—The Motion of Viscous Substances: Prof. 
F. T. Trouton, F.R.S. 
Royat AsTRONOMICAL SociETy, at 5.—On the Determination of the 
Division Errors of a Graduated Circle: S. S. Hough.—On the Degree of 
Accuracy of the New Lunar Theory: E. W. Brown.—On the Com- 
parison between the Purely Theoretical and Observed Places of the 
Moon: E. Nevill.—On the Relative Efficiency of Different Methods of 
Determining Longitudes on Jupiter: A. Stanley Williams.—Positions and 
Photographic Magnitudes of Ninety Stars surrounding the Variable 
R Cygni: J. H. Metcalf. —Note on the Instrumental Errors affecting 
Observations of the Moon: H. H. Turner.—Comparisons of the Geo- 
centric Places of the Sun and Major Planets calculated from the Tables 
of the American Ephemeris Office with their Places calculated from 
Le Verrier's Tables for 1906: A. M. W. Downing.—Note on the 
Drawings of the Mare Serenitatis by John Russell, R.A. : S. A. Saunder. 
—Note on the Date of the Passage of the Vernal Equinox from Taurus 
into Aries: E. W. Maunder and A. S. D. Maunder.—Pafers promised : 
On the Chromatic Correction of Object Glasses, Second Paper: A. E. 
Conrady.—Note on the Optical Defects of the Microscope of a Measuring 
Machine for Astronomical Photographs: H. C. Plummer. 
INSTITUTION OF CiviL ENGINEERS, at 8.—The Piemium System of 
Payment for Labour : W. G. Banister. 
PrysicaL Society, at 8.—The Whirling and Transverse Vibrations of 
Shafts: Dr. C. Chree, F.R.S.—Notes on Non-homocentric Pencils, and 
the Shadows produced by Them—Part II. Shadows produced by Axially 
Symmetrical Pencils possessing Spherical Aberration : W- Bennett. 
MALACOLOGICAL SociEty, at 5.—A Résumé «f Recent Researches on the 
Suucture of Pelecypod Gills: Dr. W. G. Ridewood.—Descriptions of 
two new Species of Opisthostoma from Borneo: K. A. Smith.—On some 
Non-Marine Hawaiian Mollusca: C. F. Ancey.—New Species of 
Mollusca from New Zealand: Rev. W. H. Webster. 
SATURDAY, Mankcu 12. 
at 3.—The Life and Work of Stokes 
Roya Institution, 
Rayleigh. 
Lord 
MONDAY, Marcu 14. 
at 8.—Recent Advances 
(Cantor Lecture, IT). 
TUESDAY, Marcu 15. 
Rovat InstiTuTion, at 5.—The Doctrine of Heaven and Hell in Ancient 
Egypt and the Books of the Underworld: Dr. E. A. Wallis Budge. 
ZOOLOGICAL Society, at 8.30.—Contributions to the Anatomy of the 
Lacertilia.—I. On the Venous System in certain Lizards: F. E. Bed- 
dard, F.R S.—Note on the ll and Markings of the Quagga: R. 
Lydekker, F.R.S.—On Additions to the List of Rhopalocera of 
Dominica: P. I. Lathy. 
INsTiTUTION OF CIVIL ENGINEERS, < 
Asyut: G. H. Stephens, C.M.C e Use of Cement Grout at the 
Delta Barrage in Egypt: Sir Rk. H. n, K.C.M.G. 
Roya StTaTIsTICAL SOCIETY, at 5.—Statistics of London Traffic: E. Ns 
Harper. 
Society oF Arts, at 4.30.—Recent Developments in Devonshire Lace 
Making: Alan S. Cole, C.B 
NO. 1793, VOL. 69| 
Society oF Arts, 
in Electro-Chemistry: 
Bertram Blount 
8.—The Barrage across the Nile at 
WEDNESDAY, Marcu 16. 
CHEMICAL Society, at 5.30 —Mercuric Nitrite and its Decomposition by 
Heat: P. C. Ray.—Note on the Higher Glycerides: J. B Hannay.— 
The Nature of a Solution of Iodine in Aqueous Potassium Iodide : C. H. 
Burgess and D. L. Chapman.—The Reduction of 2:6-Dinitrotoluene 
with Hydrogen Sulphide: J. B. Cohen and J. Marshall.—Isomeric 
Change of Diacylanilides into Acylaminoketones. Transformation of 
the Dibenzoyltoluidines into the Isomeric Benzoylaminotoluophenones : 
F. D, Chattaway and W. H. 1 ewis —cid Esters of Methyl Substituted 
Succinic Acids: W. A. Bone, J J Sudborough, and I. H. G. Sprankling. 
—Action of Ethyl B-Iodopropionate on Ethyl Disodioacetylenetetra- 
carboxylate : O. Silberrad. 
ENTOMOLOGICAL SocieTy, at 8. 
Society or Arrs, at 8.—Artificial and other Building Stones: L. P. Ford. 
Rovyat MicroscopicaL Society, at 8.—A Note on Some New Methods 
of Measuring the Magnifying Power of the Microscope and of Lenses 
Generally : Prof. A. E. Wright.—Exhibition of Hand-painted Lantern 
Slides illustrating Botanical Histology prepared by Mr. A. Flatters. 
RovAt METEOROLOGICAL Society, at 7.30.—Water Vapour: R. H. 
Curtis. 
THURSDAY, Marcu 17. 
Roya SOcIETY, at 4.30. 
LINNEAN Society, at 8.—On the Bryozoa from Franz Josef Land: 
A. W. Waters.—Natural-Colour Photographs of Living Insects and 
Flowers: F. Enock. 
AERONAUTICAL SOCIETY, at 8.—Experiments with Aérial Screw Propellers: 
Major B. F. S. Baden-Powell—The Beedle Airship: W. Beedle.— 
Mechanical Flight: Thomas Moy. 
InstirutTion oF Mininc anp*METALLURGY, at 8.—Annual General 
Meeting. Followed by Discussion on ‘‘ The Equipment of Laboratories 
for Advanced Teaching and Research in the Mineral Industries.” 
FRIDAY, Marcu 18. 
InstiruTION OF MEcHANICAL ENGINEERS, at 8.—Compound Loco- 
motives in France: M. Edouard Sauvage. 
SATURDAY, Marcu 10. 
Royat InstiTvTION, at 3.—The Life and Work of Stokes : Lord Rayleigh. 
CONTENTS. PAGE 
The Animals of Indian Gardens. By W.T.B.. . 433 
Engineenngyscience,, Bysl. ess ane 434 
School Geometry ‘ - 434 
Our Book Shelf :— 
Krasan: ‘Ansichten und Gesprache iiber die 
individuelle und specifische Gestaltung in der 
INE Vani gs?) fad Gb A 435 
Karsten and Schenck : ‘* Vegetationsbilder ” 435 
‘© Scrutator ” : ‘* Photographic Failures”. . . . . . 436 
Martin: ‘* Up-to-Date Tables for Use Throughout 
the Empire, Weights, Measures, Coinage”’ 436 
Borchardt : ‘‘ Arithmetical Examples” 436 
Letters to the Editor :— 
Rontgen Rays and the + Rays from Radium.—A. S. 
Eve is Otte ROMD foc ec Sob - 436 
Nature of the y Rays from Radium.—Prof. E, 
Rutherford, F.R.S. . cage kf moe 436 
Learned Societies. —A. B. Basset, F.R.S. 437 
A Dynamical System illustrating the Spectrum Lines 
and the Phenomena of Radio-activity.—G. A. 
Schott. 9)... io, Rae 437 
The z-Rays.—W. A. Douglas Rudge 437 
Earth Structure.—Dr. Charles J.J. Fox. . . . . 438 
Asymmetric Synthesis.—Dr. J. B. Cohen and T. S. 
Patterson Ee hs es BAR) 
Geological Photographs. (J///ustrated.) 439 
Action of Anesthetics on Plants . 440 
M. O. Callandreau. By W.E. P. 441 
Notes. (l//ustrated.) . 441 
Our Astronomical Column :— 
Radial Velocities of Twenty Orion Stars . 446 
Catalogue of Long-Period Variable Stars 446 
The Leonid Shower of 1903 . .. ... 446 
The Distribution of Lines in Banded Spectra . - 446 
Sun-Spot Variation in Latitude, 1861-1902. (Ith 
Diagrams.) By Dr, William J. S. Lockyer. 447 
The Dunedin Meeting of the Australasian 
Association . ~ eee : 5.5 » 449 
Brewing and Research. ByA. D. H. . ooo 451 
MiarineyBiolo pyaar) i). = (serena ea 
University and Educational Intelligence . . . . . 452 
SocietiesiandyAcademies © 2 > 3) ue asa 
Diary ofS ocieticsmrs., -) . .\ -) -icll-ni nena SO 
