392 
NATURE 
[NOVEMBER 27, 1913 
Die Oekologie der Pflanzen. By Dr. 
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O. Drude. 
(Braunschweig : F. Vieweg und Sohn.) 
By J. H. White- 
house. Pp. 92. (Cambridge University Press.) 
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Smithsonian Miscellaneous Collections. Vol 61, 
No. 1, The White Rhinoceros. By E. Heller. Pp. 
77+31 plates. 
tion.) 
Annual Report of the Board of Regents of the 
Smithsonian Institution for the Year Ending June 30, 
1912. Pp. xii+780+plates. (Washington: Govern- 
ment Printing Office.) 
Text-Book of Paleontology. 
Eastman. Adapted from the German of Karl A. von 
Zittel. Second edition, revised and enlarged. Vol. i. 
Pp. x+839. (London: Macmillan and Co., Ltd.) 
25s. net. 
The Snakes of Europe. 
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(Washington: Smithsonian Institu- 
Edited by Prof. C. R. 
By Dr. G. A. Boulenger. 
(London : Methuen and Co., 
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A First Numerical Trigonometry. By W. G. 
Borchardt and the Rev. A. D. Perrott. Pp. xit159+ 
Xvii+ xvii. (London: G, Bell and Sons, Ltd.) 2s. 6d. 
Icones Orchidearum Austro-Africanarum Extra- 
Tropicarum; or, Figures, with Descriptions of Extra- 
Tropical South African Orchids. By H. Bolus. 
Vol. iii. Pp.+plates 1-100. (London: W. Wesley 
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Die Atome. By Prof. J. Perrin. Mit Autorisation 
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DIARY OF SOCIETIES. 
THURSDAY, Novemnrr 27. 
Roya Society, at 4.30.—A Method of Measuring the Pressure Pro- 
duced in the Detonation of High Explosives or by the Impact of Bullets : 
Prof. B. Hopkinson,—Gravitational Instability and the Nebular 
Hypothesis : J. H. Jeans.—The Diffraction of Light by Particles com- 
parable with the Wave-length: B. A. Keen and Prof. A. W. Porter,— 
Note on the Colour of Zircons, and its Radio-active Origin: Prof. R. J. 
Strutt.—The Influence of the Constituents of the Crystal on the Form of 
the Spectrum in the X-ray Spectrometer: Prof. W. H. Bragg.—The 
Analysis of Crystals bythe X-ray Spectrometer: W. L. Bragg.—Ship 
Resistance : The Wave-making Properties of Certain Travelling Pressure 
Disturbances: Dr. T. H. Havelock.—‘lhe Mathematical Representation 
of a Light Pulxe: Dr. R. A. Houstoun. 
InsTITUTION OF ELECTRICAL ENGINEERS, at 8.—The Characteristics of 
Insulation Resistance: S. Evershed. 
Concrete Insti Ture, at 7.30.—The Differential and Integral Calculi for 
Structural Engineers : W. A. Green. 
FRIDAY, Novemeer 28. 
Junior Institution oF ENGINEERS, at 8,— Patent Protection: A. Abbey. 
Puysica. Sociery, at 5.—lhe Expansion of Silica: Prof. H. L. Callendar. 
—The Thermal Fxpansion of Mercury and Fused Silica: F. J. Harlow. 
—An Experimental Method for the Production of Vibrations on Strings, 
Prof. J. A. Fleming.—A Double-fibre String Galvanometer ; W. Apthorpe. 
SATURDAY, Novemser 20. 
Essex Fietp Cxun (at the Essex Museum of Natural History, Stratford) 
at 6.—Autumn Botany at Clacton: C. E. Britton —Report of Club's 
Deleg&te at the Meeting of the British Association at Birmingham, 1013: 
J. Wilson. —A Demonstration on the Nano-Plankton of Freshwater Ponds 
and Lake , as Revealed by the Use of the Centrifuge: D. J. Scourfield. 
The Occurrence of Rhaxyella-chert in the Epping Forest Gravels: P. G. 
Thompson.—N otes on the Plant-seeds found during Excavation of the 
Romano-British Barrow on Mersea Island: S. Hazzledine Warren. 
MONDAY, DECEMBER t. 
Society of ENGINEERS, at 7.30—The Corrosion and Rusting of Iron: 
E. K. Rideal. 
ARISTOTELIAN SocieTy, at 8.—Feeling: Pror. J. A. Smith. 
Society or Cyemicat InpustrRy, at 8.—Use of Antiseptics for Soil 
Sterilisation Purposes: Dr. E. J. Kussell and Mr. Buddin. 
Roya Society or Arts, at 8.—Cantor Lecture—The Measurement of 
Stresses in Materials and Structures: Prof. E. G. Coker. 
TUESDAY, DECEMBER 2. 
RGNTGEN Society, at 8.15.—Sterilisation of Milk by Electrified Gas: Dr. 
Hampson, Prof. W. G. Duffield, and T. Murray.—Radium-emanation 
Applicators: C. E. S. Phillips 
Royat ANTHROPOLOGICAL INSTITUTE, at 8.15.—Japanese Minor Magic 
connected with the Propagation and Early Infancy of Children: W. L. 
Hildburgh. = | 
InstiruTion oF Civit ENGINEERS, at 8,—The Transandine Railway : 
B. H. Henderson, 
NO. 2300, VOL. 92] 
WEDNESDAY, DECEMBER 3. 4 
AERONAUTICAL SociETy, at 8.30.—The Coming Airship: Captain C. M. — 
Waterlow. i 4 te 
Grotosicat Society, at 8.—(1) A Contribution to our Knowledge of she 
Geology of the Kent Coalfield; (2) ‘he F@ssil Floras of the Kent Coal- 
field: Dr. E, A. Newell Arber. : 3 
| Rovat Society or Arts, at 8.—Perfumery: J. C. Umne 
8.—Sulphuretted 
| Society oF Pusrtic ANAaLysTs, at tactader from 
Artificial Graphite : W. H. Woodcock and B. Blount.—The Determina~ 
tion of Strychnine in the Presence of Quinine : C. Simmonds.—The Rate 
of Liberation of Hydrocyanic Acid from Linseed : S. Collins and H, Blair. 
—The Composition of Palm-Kernel Oil: G. D. Elsdon. 
Entomotocicat Society, at 8.—New South American 
W. F. H. Rosenberg and G. Talbot. / 
THURSDAY, DECEMBER 4. : 
Rovat Society, at 4.30.—Probable Papers: (1) A Method of Studying 
Transpiration ; (2) ‘he Effect of Light on the lranspiration of Leaves: 
Sir Francis Darwin.—Dimensions of Chromosomes considered in Relation 
to Phylozeny: Prof. J. B. Farmer and L. Digby.—The Process of Caleifi- 
cation in Enamel and Dentine: J. H. Mummery.—The Optimum Tempera~ 
ture of Salicin Hydrolysis by Enzyme Action is Independent of the Con- 
centrations of Substrate and Enzyme: A. Compton.—The Ratio between 
Spindle Lengths in the Spermatocyte Metaphases of Heliae Pomatia : 
C. F. U, Meek.—Egyptian Blue: Dr. A. P. Laurie, W. F. P. McLintock 
and F, D. Miles. a ; 
INSTITUTION OF ELECTRICAL ENGINEERS, at 8.—Electricity Supply in 
Large Cities: Dr. G. Klingenberg. z. 
Linnean Society, at 8.—Wild Wheat from Mount Hermon, 7?7?ficumr 
dicoccoides Koern: Prof. J. Percival.—Neurotes, a New Genus of 
Mymarida, from Hastings: F. Enock.—A Contribution to the Study of 
the Evolution of the Flower; with Special Reference to the Hamameli- 
dacez, Caprifoliaceze and Cornacez: A. S. Horne. —The Mollusca of the 
River Nile: Mrs. Longstaff. : 
#RIDAY, DECEMBER 5. 
InsTiTUTION OF MECHANICAL ENGINEERS, at 8.—Thomas Hawksley 
Lecture ; Water as a Mechanical Agent: E. B. Ellington. : 
Junior InstiruTion oF ENGINEERS, at 8.—Presidential Address: Sir 
Boverton Redwood, Bart. i 5 
INSTITUTION OF CrviL ENGINEERS, at 8.—The Liverpool Street Extension 
of the Central London Railway: H. V. Hutt. 
CONTENTS. PAGE 
A\Gesson for England. By J.P: : 3... ea 
Molecular Physics, By H.G.J.M......... 367 
Flight Principles and Practice .......... 3j08 
Gur-Bookshelf .... «sve nite) io) + eel 
Letters to the Editor:— : 
Migration Routes.—Horace Darwin, F.R.S. 37° 
The Elephant Trench at ewlish.—H. T, Ferrar . 371 
On a Habitat of a Marine Ameeba.—J. H. Orton. . 371 
372 
' Butterflies = 
A Remarkable Meteor on November 24.—Dr. Arthur 
PA. Rambaut, FO RiSe eee 
Darwinism 100 Years Ago.—Prof. 
RS...) a ee ee 
Intra-atomic Charge.—A. van der Broek _. . 
The Stone Implements of the Tasmanians. —Reginal 
Arescnith)..... Vantin = hielo) she, sen 
Museum Glass.—F, J. Cole. 
Captain Scott’s Last Expedition. 
Radium Resources. By Frederick Soddy, F.R.S. . 
Presentation of the Bust of Sir Henry Roscoe to 
the Chemical Society. (J//ustrated.) ....... 
Notes, (Zi/ustrated.).. 5. “ss aS 1s) a) 
Our Astronomical Column :— 
Astronomical Occurrences for Derember . . ... . 
A New Hill Astronomical Observatory... . 383 
Measurement of Radial Velocities by Objective Grating 
Spectrograph. . . . onan 
Sun-spot Areas for 1912 Oo a a 
Curricula of Secondary Schools. By G. F. Daniell 
The Spread of the Metric System. ..... .. 
By Dr. J. H. 
‘Arthur Dendy, 
" (Zlustrated.) By 
Zoology at the British Association. 
Ashworth Re Carib © sce c 
University and Educational Intelligence. ..... 
Societies.and Academies): 3): ~ : (4%, >n-sneeeee 
Books Received ool og WSN Sr s.d Coats) ces ee 
Diary of Societies see 392 
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