626 
NATURE 
[January 29, 1914 
Hatch. Seventh edition. Pp. xxix+454. 
G. Allen and Co., Ltd.) 7s. 6d. net. 
Biological-Statistical Report on the Produce of the 
Danish Sea-Fishery in t910.. By A: C, Johansen and 
E. Neergaard-Moller. Pp. 179. (Copenhagen: C. A. 
Reitzel.) 
(London : 
Gypsy Lore Society Monographs. No. 1. A Gypsy 
Bibliography. By Dr. G. F. Black. Pp. viit+226, 
(London: B. Quaritch.) 155. 
Iowa Geological Survey. Vol. xxii. Annotated 
Bibliography of lowa Geology and Mining. By C. 
Keyes. Pp. 908. (Des Moines.) 
Department of Commerce. Technologic Papers of 
the Bureau of Standards. No. 18. Electrolysis in 
Concrete. By E. B. Rosa, B. McCollum, and O. S. 
Peters. Pp. 137+plates. (Washington : Government 
Printing Office.) 
A Course of Practical Work in the Chemistry of 
the Garden. By D. R. Edwardes-Ker. Pp. 40. 
(London: J. Murray.) 1s. 6d. net. 
Tables for Facilitating the Use of Harmonic 
Analysis, as arranged by Prof. H. H. Turner. Pp. 
46. (London: Oxford University Press.) 1s. net. 
Tierische Immunitat. By Dr. W. Rosenthal. Pp. 
X+329. (Braunschweig: F. Vieweg und Sohn.) 6.50 
marks. 
From the Letter-Files of S. W. Johnson. Edited 
by his Daughter, E. A. Osborne. Pp. v+292. (New 
Haven: Yale University Press; London: Oxford Uni-. 
versity Press.) tos. 6d. net. 
DIARY OF SOCIETIES. 
THURSDAY, JANvuaRY 209. 
Rovar Society, at 4.30.—The Origin of Thermal Ionisation from 
Carbon: Prof. O. W. Richardson.—T’he X-ray Spectra given by Crystals 
of Sulphur and Quartz: Prof. W. H. Bragg.—The Temperature 
Variation of the Photo-elastic Effect in Strained Glass: Prof. L. N. G. 
Filon.—Studies in Brownian Movement. I. The Brownian Movement of 
the Spores of Bacteria: J. H. Shaxby and Dr. Emrys Roberts.—The 
Transmission of Kathode Rays through Matter: Dr. R. Whiddington.— 
The Variation with Temperature of the Specific Heat of Sodium in the 
Solid and the Liquid State; also a Determination of its Latent Heat of 
Fusion: Ezer Griffiths.—Radiation from a Gas: Dr. G. Green.—Simi- 
larity of Motion in Relation to the Surface Friction of Fluids: Dr. T. E. 
Stanton and J. R. Pannell.—The Influence of Molecular Constitution and 
Temperature on Magnetic Susceptibility: A. E. Oxley.—The Boiling 
Point of Sulphur on the Thermo-dynamic Scale : N. Eumorfopoulos. 
Roya InstiTuTion, at 3.—The Mind of Savage Man: His Moral and 
Religious Life : W. McDougall. 
ConcreETE INsTITUTE, at 7.30.—Discussion on ‘A Standard Method of 
Measurement for Reinforced Concrete.” 
Society oF Dyers AND CoLourists, at 8.—(1) The Effects of Mineral 
Loading upon the Physical Qualities of Hedychium Paper ; (2) Tests to 
TDetermine the Relative Strength and Elasticity of Some Natural Fibres: 
Clayton Beadle and Dr. Henry P. Stevens. 
FRIDAY, JANUARY 30. 
InsTiTUTION oF CiviL ENGINEERS, at 8.—'‘Lhe Testing of Materials for Use 
in Engineering Construction: E. W. Monkhouse. 
SATURDAY, JANvuary 31. 
Essex Frecp Crus (at the Essex Museum of Natural History, Stratford), 
at 6.—Notes on a Trip to Swedish Lapland, with Remarks on the 
Lichens Collected: D. [. Scourfield and R. Paulson.—British Oysters, 
Pliocene to Recent: A. Bell.—Scientific Surveys : Rev. C. H. Grinling. 
MONDAY, FEwrRuary 2. 
Society or Cuemicat InpustRy, at 8.—Oxygen and Metallic Antimony 
in Crude Antimony: W. R. Schoeller.—Estimation of Zinc in Coinage 
Brenzes by Volatilisation : T. K. Rose.—Nickel Tannates : Puran Singh. 
ARISTOTELIAN Socrety, at 8.—Intuitionism Translated from the Russian 
of Prof. Losskij: Mrs. Duddington. 
Society OF ENGINEERS, at 7.30.—Presidential Address: H. C. H. Shenton. 
Rovat Society or Arts, at 8.—The Relation of Industry to Art: Sir 
Charles Waldstein. 
TUESDAY, FEBRUARY 3. 
Royat INSTITUTION, at 3.—Animals and Plants under Domestication : 
Prof. W. Bateson. 
ZOOLOGICAL Society, at 8.30.—An Annotated List of the Reptiles and 
Batrachians collected by the British Ornithologists’ Union Expedition 
and the Wollaston Expedition in Dutch New Guinea: G. A. Boulenger. 
—Contributions to the Anatomy and Systematic Arrangement of the 
Cestoidea. XII. Further Observations upon the Genus Urocystidium 
Beddard: Dr. F. E. Beddard.—Report on the Deaths which occurred in 
the Zoological Gardens during 1913 : H. G. Plimmer. 
INSTITUTION oF CiviL ENGINEERS, at 8.—The Problem of the Thrust 
Bearing: H. T. Newbigin. 
Roya Society oF ArTs, at 4.30.—The Montreal, Ottawa, and Georgian 
Bay Canal: Sir R. W. Perks, Bart. : 
ROéNTGEN Society, at 8.15. 
NO. 2309, VOL. 92| 
WEDNESDAY. FEuRUARY 4 a 
AiRONAUTICAL SociETy, at 8.30.—Further Developments of Military 
Aviation: Lieut.-Col. F. H. Sykes. e S 
GEoLocicat Society, at 8.—The Lithology and Composition of Durham 
Magnesian Limestones: C. T. Trechmann.—The Occurrence of a Giant 
Dragon-fly in the Radstock Coal-measures: H. Bolton. ; 
SocieTy oF Pusiic Analysts, at 8.—Lodimetry of Arsenic, Copper 
and Iron: Dr. G. D. Lander and J. J. Geake.—The Composition and 
Analysis of Compound Liquorice Powder: A. E. Parkes and F. Major.— 
The Composition of the Saline Matter jadhering to certain Wet Salted 
Skins: M. C. Lamb. ; f 
ENToMmoLocicat Society, at 8.—The Myrmecophilous Aphides of Great 
Britain: Prof. F. V. Theobald. i 
Rovat Society oF Arts, at 8.—Motor Fuels, with Special Reference to 
Alcohol: Dr. W. R. Ormandy. 
THURSDAY, Frervary 5. 
Royat Socigty, at 4.30.—Probable Papers: The Conduction of the Pulse 
Wave and the Measurement of Arterial Pressure: Prof. F. Hill, J- 
McQueen and M. Flack.—Report of the Monte Rosa Expedition of rgrt + 
J. Barcroft, M. Camis, C. G. Mathison, F. Roberts and J. H. Ryffel,— 
Some Notes on Soil Protozoa. I: C. H. Martin and K. Lewin.—The 
Development of the Starfish Asterias rubens L : J. F. Gemmill.—The 
Floral Mechanism of Welwitschia mirabilis (Hook): Dr. A, H. Church. 
Roya. InsTiTUTION, at 3.—Types and Causes of Earth Crust Folds: Sir 
Thomas H. Holland, K.C.I.E. . 
Linnean Society, at 8.—The Vegetation of White Island, New Zealand = 
W. R. B. Oliver.—Lantern-slides of Cape Plants, mostly in their Native 
Habitats : W. C. Worsdell.—The Range of Variation of the Oral Append- 
ages in some Terrestrial Isopoda: W. E. Collinge. 
FRIDAY, Fesruary 6. ; 
Royat InsTITUTION, at 9.—The Mechanics of Muscular Effort: Dr. H. S.- 
Hele Shaw. > 
CONTENTS. PAGE 
Millionaire and Naturalist. By Sir E. Ray Lank- 
ester, K.C.B., F.R:S. 2222209590 3) tee 
School. Gardening». ...s. 5 2...) oo 
Our Bookshelf .- - . -.\.cc®s)4-5 72 “2a 2 
Letters to the Editor :— 
Aristotle’s Physics. Sir William Ramsay, K.C.B., 
F°R.S. ; Sir Oliver Lodge, 7..RiS).02 eee 
The Eugenics Education Society,—Prof. Karl Pear- 
son; FOR S.:. > 2 eee ica an 
Some Habitats of a Marine Amceba.—J. H. Orton 
Projective Geometry. —H. Piaggio; ‘‘ The Writer 
ofithe: Note? 2). cnae MR AL 
Zonal Structure in Colloids. (Jé/ustrated.)—George 
Abbott . =. 5... Se epeee ee ee : 
Weather Forecasting. —R. M. Deeley ......- 
Liquid Air as a Fixative.—Prof. Henry H. Dixon, 
Atomic Models and X-Ray Spectra.—Sir Oliver 
Lodge; F.R: Sic sree +) a ae 
Automatic Aéroplane Controls. By Prof. G. H. 
Bryan, F.R.S. |. ee een 
The Atlanta Meeting of the American Association 
Dr, S. 'C. Chandler.) By*W2E. P22 ee 
Notes oA ee PPMP IIG «a vie in : 
Our Astronomical Column :— 
Astronomical Occurrences for February ..... «- 
Use of the Objective Prism in the Determination of 
Radial Velocities . Ee i hie oe ee 
A Monument to ‘‘ The Hour”... . .*. . 3 = 
**L?Astronomie” for January ot) 1. ee 
International Conference on the Safety of Life at 
SOA kw wes Sy ey ee 
Recent Temperatures in Europe ........-. 
The Importation of Birds’ Plumage. ....... 
Geology in North America.. (J///ustrated.) .. . 
Romer’s ‘‘ Adversaria.” ByJ.L.E.D....... 
University and Educational Intelligence. .. . . 
Societies and Academies ........ - 
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Diary of Societies; - 2.02. foe ee oe 
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