on 
TS 
NATURE 
[MarcH 14, 1912 
Printed at the Bengal Secretariat Press.) 
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Storage Batteries. The Chemistry and Physics of 
the Lead Accumulator. By Dr. H. W. Morse. Pp. 
266. (London: Macmillan and Co., Ltd.) 6s. 6d. 
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The Composition of Matter and the Evolution of 
Mind. By D. Taylor. Pp. 176. (London: Walter 
Scott Publishing Company, Ltd.) 3s. 6d. 
Probleme der Physiologischen und Pathologischen 
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Chemie. By Prof. O. von Fiirth. i. Band—Gewebs- 
chemie. (Leipzig: F. C. W. Vogel.) 16 marks. 
The Mineral Kingdom. By Dr. R. Brauns. 
Translated, with additions, by L. J. Spencer. Parts 
17, 18, 19, 20. (Esslingen: J. F. Schreiber; London : 
Williams and Norgate.) 2s. net each. 
Laubfall und Lauberneuerung in den Tropen. By 
G. Vollkens. Pp. 142. (Berlin: Gebriider Born- 
traeger.) 2.So marks. 
Notions Fondamentales d’Analyse Qualitative. By 
Prof. V. Thomas and D. Gauthier. Pp. viii+331. 
(Paris: Gauthier-Villars.) 10 francs. 
Zoologische Jahrbiicher. _ Supplement 15—Fest- 
schrift zum Sechzigsten Geburtstage des Herrn 
Geheimen Hofrats Prof. Dr. Johann Wilhelm Spengel 
in Giessen. Edited by A. Brauer and others. 3 vols. 
Pp. viii+ 609+ plates, 863+ plates, 572+plates. (Jena: 
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Gardens in their Seasons. By C. Von Wyss. Pp. 
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Biological Fact and the Structure of Society (the 
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DIARY OF SOCIETIES. 
THURSDAY, Marcu 14. 
Rovat Society, at 4.30.—On a New Method of Examining Normal and 
Diseased Tissues by means of zx¢va vitam Staining : Prof. E. Goldmann. 
—The Effects of Ultra-Violet Rays upon the Eye: Dr. E. K. Martin.— 
On the Presence of Radium in some Carcinomatous Tumours: Dr. W. S. 
Lazarus-Barlow.—An Improved Method ‘or Opsonic Index Estimations 
involving the Separation of Red and White Human Blood Corpuscles : 
C. Russ.—The Electrical Conductivity of Bacteria, and the Rate of 
Inhibition of Bacteria by Electric Currents: Prof. W..M. Thornton,—A 
Critical Study of Experimental Fever: E. C. Hort and W. J. Penfold.— 
Certain Results of Drying Non-Sporing Bacteria in a Charcoal Liquid 
Air Vacuum: S G. Shattock and L. S. Dudgeon. 
Rovat Society oF ARTS, at 4.30.—The Indian Census for torr: E. A. 
Gait. 
MATHEMATICAL Society, at 5.30.—The Cubic Surface as a Degenerate 
Quartic: G. T. Bennett. 
INSTITUTION OF ELECTRICAL ENGINEFRS, at 8. 
ConcrETE INs‘rITUTE, at 8.—The Design of High Dams: R. Ryves. 
FRIDAY, Marcu 15, 
Roya InstTiTuTION, at 9.—The Origin of Radium: F. Soddy, F.R.S. 
InsTITUTION OF MECHANICAL ENGINEERS, at 8.—The Diesel Oil Engine, 
and its Industrial Importance particularly for Great Britain: Dr. 
Rudolf Diesel. 
InsTiTuTION oF CiviL ENGINEERS, at 8.—The Heat Value of Fuels: 
A. E. Gladwyn. 
SATURDAY, Marcu 16 
Roya. InstiTuTION, at 3.—Molecular Physics : Sir J. J. Thomson, F.R.S. 
MONDAY, Maxcu 18. 
Roya. Society oF Arts, at 8—Materials and Methods of Decorative 
Painting: Noel Heaton. 
TUESDAY, March 1a. 
Roya InsTITUTION, at 3.—Ancient Britain: Dr. T. Rice Holmes. 
Roya ANTHROPOLOGICAL INSTITUTE, at 8.15.—The Study of Primitive 
Music: Dr. C. S. Myers. 
Rovat STATISTICAL SOCIETY, at 5.—The Financial Systems of Germany: 
Percy Ashley. 
InsTITUTION OF CiviIL ENGINEERS, at 8.—The Main Drainage of Glasgow: 
A.B. McDonald and G. M. Taylor.—The Construction of the Glasgow 
NO. 2211, VOL. 89| 
Main Drainage Works: W. C, Easton.—Glasgow Main Drainage: The 
Mechanical Equipment of the Westera Works and of the Kinning Park 
Pumping Station: D. H. Morton. 
ZooLocicaL Sociery, at 8.30.—Lantern Exhibition of Studies of Wild 
Animals in Africa and North America: I. A. Radclyffe Dugmore.— 
Observations on some Alcyonaria from Singapore, with a brief Discussion 
on the Classification of the Family Nephthyide E. W. Shann.—A 
List of Moths of the Family Pyralide collected by Felix B. Pratt and 
Charles B. Pratt in Dutch New Guinea in rg0g-10, with Descriptions of 
New Species : G. H. Kenrick.—Some Early Fossil Cirripedes of the Genus 
Scalpellum: T. H. Withers. 
ILLUMINATING ENGINEERING Sociery, at 8.—Lighting of Printing Works 
and Offices: F. W. Goodenough and J. Eck. 
WEDNESDAY, Marcu 20. 
Royat Society or Arts, at 8.—The Work of the Marine Biological Asso- 
ciation: F. Martin Duncan. 
Roya. MereoroLocicat Society, at 7.30.—The Connection between 
Hydrographical and Meteorological Phenomena: Prof. Otto Pettersson. 
ENTOMOLOGICAL SOCIETY. at 8. 
Royat MicroseoricaL SOCIETY, 
Fredk. Knock. 
at 8.—Fairy flies and their Hosts: 
THURSDAY, MAkcu 21. 
Roya Society, at 4.30.—Prolable Papers : On the Self-induction of Elec- 
tric Currents in a thin Anchor-ring: Lord Rayleigh, O.M., F.R.S.— 
The After-luminosity of Electric Discharges in Hydrogen Observed by 
Hertz. Hon. R. J. Strutt, F.R.S.—On the Changes in the Dimensions of 
a Steel Wire when Twisted, and on the Pressure of Distortional Waves in 
Steel: Prof. J. H. Poynting, F.R.S.—The Critical Constants and Ortho- 
baric Densities of Xenon: H. S. Patterson, R. S. Cripps, and R. 
Whytlaw-Gray.—Experimental Work on a New Standard of Light: 
W. A. Harwood and J. E. Petavel, F.R.S.—On the Distribution of the 
Scattered kéntgen Radiation: J. A. Crowther.—The Passage of Homo- 
geneous Réntgen Rays through Gases: E. A. Owen. — Fluorescent 
Réntgen Radiation from Elements of High Atomic Weight: J. C. 
Chapinan.—The Nature of the y Rays excited by 8B Rays: J. A. Gray. 
Royvac InstiTuTION, at 3.—Seasonal Dimorphism in Butterflies : Dr. F. A. 
Dixey, F.R.S. A 
INSTITUTION OF MINING AND METALLURGY, at 8.—Annual Meeting. 
INSTITUTION OF ELECTRICAL ENGINEERS. at 8.—Diéscussion : The Causes 
Preventing the More General Use of Electricity for Domestic Purposes : 
Opener, S. Z. de Ferranti, President. 
FRIDAY, Marcu 22. 
Roya INSTITUTION, at g.—The North Sea and Its Fisheries: Prof. 
D'Arcy W. Thompson, C.B. 
PuysIcaAL SOCIETY, at 5. 
SATURDAY, Marcu 23. 
Royat InsTITUTION, at 3.—Molecular Physics: Sir J. J. Thomson, F.R.S. 
CONTENTS. 
PAGE 
Heat Engine Laboratory Practice. By A.J.M.. . 27 
Growing Our Own Sugar. ByC. S. ae 28 
Colloidsiin Industry) SBy2zee Alo)... ees 
PracticalyPyrometry, Byles. . 4. eemeeO 
Popular Botany, 2 eee Ms cr 3K) 
OuriBookshelf’.)  //aemeencie o- -) eee 
Letters to the Editor :— 
Osmotic and Liquid Membranes. (/V/2th Diagram. )— 
Profhredk il) sirouton bok S..00- le 
The Weather of 1911.—L. G. Schultz : ees 
Concentric Joints in Ice. (With Diagram.)—R. M. 
Deeley 2 Ce a ut ae ae BA see). 3h! 
Remuneration of Public Analysts. —J. Wil jerforce 
Green). 2...) Paes Gels, «oe eT 
The Storm of March 4.—Edward Kitto . .... . 34 
Observed Fall of an Aérolite near St. Albans.—G. E. 
Bullen \:.\. <i Cee Rennes |S eee 
Travel, Sport, and Administration. (///ustyvatea.) By 
OA ARS EY! (sR BeNOR oie tlc” .< ial es 
The Human Form. By Prof. G. Elliot Smith, F.R.S. 37 
Notes ot hat ey ee ae S| 5 er 
Our Astronomical Column ;— 
Discovenygofia Nova. 9 -aewecul co 3). 2 ee 
Ephemerides of, Cometsijuemem-nciem: + ene 
Observations of Bielids in November, 1911 . . ... 42 
The Smithsonian Astrophysical Observatory. . . . . 42 
Observations of Sun-spots and Faculee in 1911. . . . 42 
The Norwegian South Polar Expedition... . 43 
The Teaching of Mathematics. By David Beveridge 
EW a ries 20 oo. Stoke REISS cc Zu! 
The Extension of the Physical and Electrotechnical 
Laboratories of the University of Manchester . . 46 
CalendarjReform, By CeP Ane). | seen Gl 
Forthcoming Books of Science SOLOMEMMERC AC cn, 0) 
University and Educational Intelligence . .. ... 50 
SocietiesjandAtcademicsieu-wnmnmeaen clement <n 
Books'Received* = ,. Sa kaearas cic. « = meeeSe 
Diary/of Societies... <5 :araiestmeey ise lle ac eG 
