418 
The Year-Book of the Scientific and Learned 
Societies of Great Britain and Ireland, 1913. Pp. vi+ 
380. (London: C. Griffin and Co., Ltd.) 7s. 6d. 
Yorkshire Type Ammonites. Edited by S. S. Buck- 
man. Part xi. . (London: W. Wesley and Son.) 
3s. 6d. net. 
“Squaring the Circle’’: a History of the Problem. 
By Prof. E. W. Hobson. Pp. 57. (Cambridge Uni- 
versity Press.) 3s. net. 
Educational School Gardening and Handwork. By 
G. W. S. Brewer. Pp. xi+192. (Cambridge Univer- 
sity Press.) 2s. 6d. net. 
Les Problémes de la Sexualité. By Prof. M. Caul- 
lery. Pp. 332. (Paris: E. Flammarion.) 3.50 francs. 
Soils and Crops, with Soils Treated in Reference to 
Crop Production. By Profs. T. F. Hunt and C. W. 
Burkett. Pp. xiii+s541. (New York: Orange Judd 
Company; London: Kegan Paul and Co., Ltd.) 
Department of Commerce. Technologic Papers of 
the Bureau of Standards. No. 16, Manufacture of 
Lime. By W. E. Emley. Pp. 130+plates. (Wash- 
ington : Government Printing Office.) 
Survey of India. Professional Paper No. 14, 
Formulz for Atmospheric Refraction and their Appli- 
cation to Terrestrial Refraction and Geodesy. By 
J. de G. Hunter. Pp. v+114. (Dehra Dun: Office 
of the Trigonometrical Survey.) 
Mitteilungen der Prahistorischen Kommission der 
K. Akademie der Wissenschaften. II. Band., No. 2, 
1912. Pp. 127-227. (Vienna: A, Hélder.) 
City and Guilds of London Institute. Department 
of Technology, Exhibition Road, London, S.W. Re- 
port of the Department for the Session 1912-13. Pp. 
x+467. (London: J. Murray.) 
DIARY OF SOCIETIES. 
THURSDAY, DecEMpPER 4. 
Rovat Society, at 4.30.—(r) A Method of Studying Transpiration ; 
(2) The Effect of Light on the Transpiration of Leaves: Sir Francis 
Darwin.—Dimensions of Chromosomes considered in Relation to 
Phylogeny: Prof. J. B. Farmer and L. Digby.—The Process of Calcifi- 
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 Helix Pomatia: 
C. F. U. Meek.—Egyptian Blue: Dr. A. P. Laurie, W. F. P. McLintock 
and F, D. Miles. 
INSTITUTION OF ELECTRICAL ENGINEERS, at 8.—Electricity Supply in 
Large Cities: Dr. G. Klingenberg. 
Linnean Society, at 8.—Wild Wheat from Mount Hermon, 7 7ificum 
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 Cornacew: A. S. Horne.—The Mollusca of the 
River Nile: Mrs. Longstaff. 
FRIDAY, D&cEMBER 5. 
INsTITUTION OF MrcHaNical. ENGINEERS, at 8.—Thomas Hawksley 
Lecture : Water asa Mechanical Agent: E. B. Ellington. 
Junior InstiruTION oF ENGINEERS, at 8.—Presidential Address: Sir 
Boverton Redwood, Bart. 
InstiTuTION oF Civic ENGINEERS, at 8.—The Liverpool Street Extension 
of the Central London Railway: H. V. Hutt. 
Gerotocists’ Association, at §8.—Evolution and Palxobotany: Dr. 
Marie C, Stopes. 
MONDAY, Decemorr 8. 
Rovat GEOGRAPHICAL SOCIETY, at $.30.—Is the Earth Drying Up?: Prof. 
J. W. Gregory. 
Royat Society or Arts, at 8.—The Measurement of Stresses in Materials 
and Structures: Prof. E. G. Coker. 
TUESDAY, DECEMBER 9. 
Institution oF Civit ENGtnrers, at 8.—/urther Discussion: The 
Transandine Railway; B. H. Henderson.—Probadle Paper: Cyclical 
Changes of Temperature in a Gas-engine Cylinder: Prof. E. G. Coker 
and W, A. Scoble. 
WEDNESDAY, DECEMBER 10. 
Royar Society or Arts, at §8.—The application of Electricity to Agri- 
culture and Life: T. Thorne Baker. 
THURSDAY, Decemper 11. 
RovaL Society, at 4.30.—Probable Papers: Intermittent Vision: A. 
Mallock.—The Relations between the Crystal-symmetry of the Simpler 
Organic Compounds and their Molecular Constitution. III. : W. Wahl. 
—The Selective Absorption of Ketones: Prof. G. G. Henderson and 
J. M. Heilbron.—Absolute Measurements of a Resistance by a Method 
NO. 2301, VOL. 92] 
NATURE 
based on that of Lorenz: F. E. Smith.—A Determination of the E! 
motive Force of the Weston Normal Cell in Semi-absolute Volts. (1 
a Preface by Prof. H. L. Callender, F.R.S.); A. N. Shaw.—Blasi 
Hysteresis in Steel: F, E. Rowett-—A Simple Form of Micro-balay 
Determining the Densities of Small Quantities of Gases: F. W. ‘Asfoas 
A Second Spectrum of Neon: T. R. Merton. we 
MATHEMATICAL SOCIETY, at 5.30.-—The Linear Integral Equation > Pro 
E. W. Holson.—Generalised Hermite Functions and their Connect! 
with the Bessel Functions: H. E. J. Curzon.—-Limiting Forms of r 
Period Tides : J. Proudman.—The Number of Primes of Same Residt 
acity: Lieut -Col. Cunningham.—Some Results on the Form a 
Infinity of Real Continuous Solutions of a Certain ‘lype of Second Ord: 
Differential Equations ;: R. H. Fowler.—The Potential of a Homogeneot 
Convex Body and the Direct Integration of the Potential of an Elie 
S. Brodetsky.—The Dynamical Theory of the Tides in a Polar ee 
o a Goddsbrough. —Proof of the Complementary Theorem : Prof. 
jelds. ; 
aoe INSTITUTE, at 7.30.—Some Fallacies in Testing Cement: L. 
add. - = 
Rovat Society or Arts, at 4.30.—The Cultivation and Manufacture o} 
Indian Indigo: Prof W. P, Bloxam. , 
InsTITUTION OF ELEcTricaL ENGINEERS, at 8.—Continuation of Dis 
“heey on Dr. Klingenberg's Address on ‘‘ Electricity Supply in Large 
ities.” 
FRIDAY, DECEMBER 12. 
RovaL ASTRONOMICAL SOCIETY, at 5.— A 
MALacotocicat Society, at 8.—Descriptions of Various New Species of 
Mollusca: G. B. Sowerby.—Synonymy of the Family Veneride: A. J. 
Tukes-Browne, F.R.S.—Descriptions of New Species of Land and Marine 
Shells from the Montebello Islands, Western Australia: H. B. Preston. 
ALCHEMICAL Society, at 8.15.—Alchemy in China: Prof. H. Chatley.. 
z 
CONTENTS. 
Antarctic Meteorology. By Prof. W. Meinardus. . — 
The Group-Origin of Species, By R.R.G.... . 
The New Psychology. By A. E. Crawley. .... 
Popular Botanical Publications. By F.C. ... .° 
Our Bookshelf... ./ + +. .5.ma \erkepien We 
Letters to the Editor :— site 
Synthesis by Means of Ferments.—Sir Lauder — 
Brunton, Bart., FORiSt_, 0) + «els eee 
Ameebocytes in Calcareous Sponges.—Prof, Arthur 
Dendy, F.R.S. . paydiy3 NY 2c ee a 
Intra-atomic Charge.—Frederick Soddy, F,R.S. . 
Philosophy of Vitalism.—Prof. Hans Driesch ; 
Prof, E. W. MacBride, F.R:S. .. 2 eae 
The Kathode Spectrum of Helium.—Prof. P. G. — 
Nutting . . ._s «TCR Be) os 
Observation of the Separation of Spectral Lines by an 
Electric Field.—Prof. J. Stark ©. . ) 2. a6 
Phosphorescence of Mercury Vapour. —F., S. Phillips 
A Remarkable Meteor on November 24—J. S._ 
Dines; Dr. Arthur A. Rambaut, F.R.S. ... 
The British Radium Standard. By Prof. E. 
Rutherford, F.R.S.  . . sigh a Lo ee r, 
Sir Robert Ball, F.R.S. By J. L.ED). eee 
The Anniversary Meeting of the Royal Society . . 
Notes MM > - . 
Our Astronomical Column :— 
The Radial Velocity of the Andromeda Nebula. . . 
Photographic Magnitudes of Comparison Stars in 
Certain of the Hagen Fields . . hae 
The Harmonic Analyser Applied to the Sun-spot 
Cycle . saw whee AOS oi toy a Me 
R:iZ..Gassiopeize . ss 2s, s) eyis) <0) 5) ils ee 
The Nantucket Observatory. A 
Convergence in the Mammalia. By J.H.A.... 
Anthropology at the British Association ..... 
Ocean Temperatures Near Icebergs .......- 
University and Educational Intelligence. ..... 
Societies and Academies: . . - = | )) (aijgme 
Books Received oo Oia, SEP stesso ea 
Dianyiof Societies . 4/200) enon) oe penn 
Editorial and Publishing Offices: 
MACMILLAN & CO., Ltp., 
ST. MARTIN’S STREET, LONDON, W.C. 
Advertisements and business letters to be addressed to the 
Publishers. 
Editorial Communications to the Editor. 
Telegraphic Address: Puusts, LONDON. 
Telephone Number: GERRARD 8830. 
