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The Camera as Historian. By H. D. Gower, L: S. 
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The Biology of Tumours. 
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Dynamics. By R. C. Fawdry. Part i. Pp. viii+ 
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Crowley’s Hygiene of School Life. 
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DIARY OF SOCIETIES. 
THURSDAY, November 2. 
Rovat Society, at 4.30.—Waves in an Elastic Plate: Prof. H. Lamb.— 
(1) Multiple Integrals ; (2) The Order of Magnitude of the Coefficients of 
a Fourier Series: Prof. W. H. Young.—A Determination of the Heat of 
Vaporisation of Water at 100’ C. and x Atmosphere Pressure in Terms of 
the Mean Calorie: T. C, Sutton.—The Mechanical Relations of the 
Energy of Magnetisation: G, H. Livens. 
MATHEMATICAL SocIETY, at 5.30.—Annual General Meeting.—Address of 
Retiring President: The Fourier Harmonic Analysis; its Practical Scope 
and its Limitations: Sir Joseph Larmor.—Multiple Integration by Parts 
and the Second Theorem of the Mean: Prof. W. H. Young.—Moving 
Axes and their Uses in the Differential Geometry of Euclidean Space : 
E. H. Neyille.—Areas and Conformal Reoresentation: I. Hodginson. 
CHEMICAL SociETy, at 8.—Overvoltage Tables. Part IV. The Theories 
of Overvoltage and Passivity : E. Newbery.—Studies of the Catbonates. 
Part II. Hydrolysis of Sodium Carbonate and Bicarbonate, and the 
Tonisation Constants of Carbonic Acid : C. A. Seyler and P. V. Lloyd.— 
The Synthesis of Hydroxyquercetin : M. Nierenstein.—(r) The Reaction 
between Methyl Iodide and some Metallic Cyanides ; (2) Some Reactions 
produced by Mercuric Iodide: E. G. J. Hartley.—The Dual Theory of 
Acid Catalysis. A Comparison of the Activities of Certain Strong Acids: 
. M. Dawson and T. W. Crann. 
Evucenics Epucation Society, at 5.15.—Mental Differences in Children : 
C. Burt. 
FRIDAY, NovemBer 3. 
InsTiruTION OF MECHANICAL ENGINEERS, at 6.—Thomas Hawksley 
Lecture: The Gas Engineer of the Last Century: H. E. Jones. 
SATURDAY, November 4. 
GEoLOoGIsSTS' ASSOCIATION, at 3.—Followed by Annual Conversazione. 
MONDAY, November 6. 
Society oF ENGINEERS, at_ 5.30.—Heating and Ventilating Private 
Dwelling-Houses: C. T. A. Hanssen. 
ARISTOTELIAN Society. at. §.—Presidential Address: Vhe Priblem of 
Recognition: Dr. H. Wildon Carr, 
Rovart Geocrapnicat. Society, at 8.30.—The Great Passes of the Western 
and Central Alps: The President. 
TUESDAY, November 7. 
Zoo.ocicat. Socrety, at 5.30.—Two New Species of Cestodes belonging 
respectively to the Génera Linstowia and Cotugnia > Dr. F. E. Beddard.— 
Notes on the Development of the Starfishes Asterias glacialis, O.F.M., 
Cribrelia oculata (Linck), Forhes, Solaster endeca (Retzius). Forbes, 
Stichaster roseus (O.F.M.), Sars: Dr. J. F. Gemmill.—Studies on. the 
Anoplura and Mallophaga, being a Report upon a Collection from the 
Mammals and Birds in the Society's Gardens. If. : B. F. Cummings.— 
Notes on a Collection of Heterocera made by Mr. W. Feather in British 
East Africa, 1911-13: Lt.-Col. J. M. Fawcett.—The Structure and 
Function of the Mouth-parts of the Palemonid Prawns: L.'A. Borradaile. 
. zy Heude's Collection of Pigs, Sika,'Serows, and Gorals in the. Sikawei 
Museum, Shanghai: A, de C. Sowerby.—The Classification of the 
Tineinz, a Subfamily of Moths of the Family Pyralide: Sir G. F. 
Hampson. 
INSTITUTION OF Civit. ENGINEERS, at 5.30.—Address by the President, Sir 
Maurice Fitzmaurice, and Presentation of Medals awarded by the Council. 
MINERALOGICAL Society, at 5-30.—Humite: Prof. W. J. Lewis.—(r) The 
Combination of Twin, Operations; (2) Modification of the Kohlrausch 
NO. 2453, VOL. 98] 
NATURE 
By Dr. C. M. Moullin. 
[NovEMBER 2, 1916 
Method of Determining Refractive Indices: Dr. J. W. Evans.—The 
Basalts of Hare Island, West Greenland : A. Holmes. 
R6NTGEN Society, at 8.15.—Presidential Address; Capt. C. Thurstan ‘ 
Holland. $28 
WEDNESDAY, November 8. : 
FARAapAy Society, at 5.30-7 and 8. 30-10. 30,—General Discussion on Refrac- 
tory Materials.—Introductory AddresS: Sir KR. Hadfield.—The Texture 
of Refractories: Dr. J. W. Mellor.—The reer ee of Petrographic _ 
Methods to the Study of Refractory Materials: Prof. W. G. Fearnsides.— 
Silica as a Refractory Material: Cosmo Jones.—The Transmission of 
Heat through Materials Employed in Furnace Construction: Ezer 
Griffiths. : 
GEOLOGICAL SOCIETY, at 5.30. 
THURSDAY, Novemper 9. baalig 
Roya Society, at 4.30.—Probable Papers; Methods of Babine a Low 
Arterial Pressure : Prof. W. M. Bayliss.—Selective Permeability; the 
Absorption of Phenol and other Solutions by the Seeds of Hordeum 
vulgare: A, J. Brown and F. Tinker.—The Toxic Action of Dilute Pure 
Sodium Chloride Solutions on the Meningococeus : C. Shearer.—The Aisle 
of the Phagocyte in Cerebro-spinal Meningitis: C. Shearer and H. W. 
Crowe.—Investigation dealing with the Phenomena of ‘‘Clot” Forma- 
tions. IV. The Diphasic Erosive Action of Salts on the Cholate Gel: 
S. B. Schryver and Mary, Hewlett.—Some Photochemical Experiments 
with Pure Chlorophyll and their Rearing on Theories of Carbon Assimila- 
tion: Ingvar Jorgensen and F. Kidd. Fix Ae 
oan Society, at 8.—Some Notes on Glass Grinding and Polishing ; 
. W. French. 
Rovyat GroGRaPHICAL Society, at 5.—Natural Divisions of England : 
C. B. Fawcett. 
FRIDAY, NovemBER 10. es 
Roya ASTRONOMICAL SCCIETY, at 5. j 
MALACOLOGICAL Society, at 7.—Has Lymnza an Auriculoid Aneesty 
C. Hedley.—(1) Anodonta cygnaea, L., and A. anatina, L.; (2) 
Pseudanodonta rothomagensis, Locard: H. H. Bloomer and H. 
—-Sexual Characters in the Shell and Radula of 
Prof. A. E. Boycott. 
Overton. 
Cyclostoma elegans: 
CONTENTS. “PAGE 
The School of Pythagoras. By Prof. D’Arcy W.- 
Thompeon, C.B., F;RiS. |. s. .) ys o0 se eae 
Physiological Chemistry. By W.D.H. ..... 167 
Our Bookshelf |, 30.0.0) <a. aie 
Letters to the Editor:— 
The Germans and Scientific Discovery.—Prof, D, 
Fraser Harris. . . . 3 6) Se, 
The Spectrum of Hydrogen.—R. T, Beatty. ... 
Origin of the Word ‘‘ Blizzard.”—Hy. Harries . . 
“Preparedness”: The American Way. By J. 
Rhododendrons and Lime. By A.W. H. .... 171 
Notes 4. oaicese. sori sarees.) 1 eatraraliaameebtees (oth ene 
Our Astronomical Column :— 
The Fireball.of October'20.°. 2 Ei «|. Suge 
The Orionid Shower of 1916... 23.0. -) 5 « See 
Ultra-violet Radiation from the Sun. . a a eee 
The Soil Survey of Wisconsin. By E.J.R. ... 177 
The Scientific Work of a School of Technology. 
By J. Hy Rea Sree eh ek eat ae 
Physiology at the British Association. ....,.. 178 
The British Association at Newcastle :— 
Section H, — Anthropology. — Opening Address 
(Abridged) by R. R. Marett, M.A., D.Sc., 
President of the Section .......... 179 
University and Educational Intelligence . .... 182 
Societies and Academies. .°. 1.2)... s) sae 
Books Received 2)... 60 a Sa 
Diary of Societies 2)... 2." = ait tee 
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