T112 

Franklin and B: MacNutt. Pp. viiit174. (New | 
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Advanced Theory of Electricity and Magnetism. By 
W. S. Franklin and B. MacNutt. Pp. viit+300. (New 
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The Mathematical Analysis of Electrical and Optical 
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By Dr. H. Bateman. Pp. vi+159. (Cambridge: At 
the University Press.) 7s. 6d. net. 
A Treatise on the Theory of Alternating Currents. 
By Dr. A. Russell. Vol. i. Second edition. _Pp. 
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Zoology. By Dr A. E. Shipley and Prof. E. W. 
MacBride. Third edition. Pp. xx+752. (Cam- 
bridge : At the University Press.) 12s. 6d. net. 
The Story of Plant Life in the British Isles. By 
A. R. Horwood. Vol. iii. Pp. xvi+514. (London: 
J. and A. Churchill.) 6s. 6d. net. 
Explosives: Their Manufacture, Properties, Tests, 
and History. By A. Marshall. Pp. xv+624. (Lon- 
don: J. and A. Churchill.) 24s. net. 
Dyestuffs and Coal-Tar Products : Their Chemistry, 
Manufacture, and Application. By T. Beacall, Dr. 
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Sand. Pp. viit156. (London: Crosby Lockwood 
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British Birds. By A. Thorburn. In 4 vols. Vol. i. 
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DIARY OF SOCIETIES. 
THURSDAY, Maxcu 25. 
Roya Society, at 4.30.—The Production of Growths or Deposits in 
Meta-stable Inorganic Hydrosols: Prof. B. Moore.—Forms of Growth 
resembling Living Organisms and their Products slowly deposited from 
Meta-stable Solutions of Inorganic Colloids: Prof. b. Moore and W. G. 
Evans.—A Contribution to our Knowledge of the Chemistry of Coat- 
Colour in Animals and of Dominant and recessive Whiteness: H. Onslow. 
Royat InstiTuTION, at 3.—The Ground beneath London: Dr. A. Strahan, 
CuiLtp Stupy Society, at 6.—The Care of the Teeth: C. E. Wallis. 
INSTITUTION OF ELecTRICAL ENGINEERS, at 8.—Telephone Troubles in 
the Tropics: W. L. Preece, 


INSTITUTION oF NavaL ARCHITECTS, at 11 a.m.—A Contribution to the 
Theory of Propulsion and the Screw Propeller: F. W. Lanchester.— 
A Comparison between the Results of Propeller Experiments in Air and 
Water : A. W. Johns.—Further Model Experiments on the Resistance of 
Mercantile Ship Forms: The Influence of Length and Prismatic 
Coefficients on the Kesistance of Ships: J. L. Kent —At 3 p-m.—The 
Law of Fatigue Applied to Crankshaft Failures: C. E. Stromeyer.— 
The Effect of Beam on the Speed of Hydro-Aeroplanes: L. Hope.— 
Notes on the Cross Curves and GZ Curves of Stability : E. F. Spanner. 
FRIDAY, Marcu 26. 
Rovat Institution, at 9.—Experiments in Slow Kathode Rays: Sir 
J. J. Thomson. 
Grotocists’ AssociaTion, at 8.—On the Structure of the Eastern Part of 
the Lake District: J. F. N. Green. 
Puysicat. Society, at 5.—The Change of Thermal Conductivity with 
Fusion: Prof. A. W. Porter and F. Simeon.—An Instrument for the 
Optical Projection and Delineation of Physical Curves, such as Hysteresis, 
Resonance and Characteristic Curves (with experiments): Prof. J. A. 
Fleming.—The Stability of Some Liquid Films: Dr. P. Phillips and 
J. Rose-Innes.—A Demonstration of the Green Flash at the Setting of an 
Artificial Sun will be given by Prof. A. W. Porter and E. T. Paris. 
SATURDAY, Marcu 27. 
Royvat InstiTuTION, at 3.—Recent Researches on Atoms and Ions: Sir 
J. J. Thomson. 
Essex FIELD Crus (at the Essex Museum, Stratford), at 6.—Annual Meet- 
ing.—The Dating of Early Human Remains: S. Hazzledine Warren.— 
—Notes on Paleolithic Implements from Wanstead Park: C. H. Butcher. 
NO. 2369, vot. 954 

NATURE 
[Marcu 25, 1915 


MONDAY, Marcu 29. 4 
Roya Society oF Arts, at 8.—House Building : M. H. Baillie Scott. 
INSTITUTE OF ACTUARIES, at 5.—Two Notes on Questions of Office- 
Practice : R. Todhunter. 
TUESDAY, Marcu 30. 
Roya SoctETy OF ARTS, at 4-30 
WEDNESDAY, Marcu 31. 
INSTITUTION OF ELECTRICAL ENGINEERS, at 7-45-—Students’ Section.— 
Some Notes on High-tension Overhead Transmission Lines : E. T. Driver. 
Society oF Pustic ANatysts, at 8.—Estimation of Methyl Alcohol in 
Presence of Ethyl Alcohol: G. C. Jones.—Note on the Determination of 
Niobium in presence of Tantalum, and some reactions of Tantalum Com- 
pounds: A, G. Levy.—Estimation of Carbon Dioxide in Self-raising 
Flours and Baking Powder: T. Macara.—Bromine Method of Deter- 
mining Phenol: W. Versfeld.—A Method tor the Determination of 
Chlorine in Cheese: Miss E. C. V. Cornish and J. Golding. 



CONTENTS. PAGE 
Psychology Without Consciousness. By A. E. 
Crawley PRT foes coos FE 
Water, Sewage, and Food. By Denison B, Byles 85 
Radiology in Theory and Practice. ByC,E.S.P. 87 
@Qur Bookshelf) 6...) .0. #4) 27 ey soy os ee 
Letters to the Editor :— 
Early Figures of the Opossum. (Z//ustrated.)—Prof. 
COR, Eastman. .. «3 ©. tls 0 9 he eS 
Differential Antiseptic Action of Organic Dyes.—Dr. 
C. H. Browning. . ae : Reece ei 
The Physical Properties of Isotopes.—Alfred C. 
Feeertom) (3... « eiepey tence ous ee 
A Misprint in Halphen’s ‘‘ Fonctions Elliptiques.”— 
Prof.iG. B. Mathews; F-R'S. <2). G06 aucie So 
Early References to Musical Sands.—Cecil Carus- 
Wilson Pre Aor Ge cs ae FS 
Two Chinese Tours. (J//ustrated.) .......++ 90 
he elelephone. in: Surgery, . t=.) ele eee 
Geodetic Science. By Sir T.H. Holdich, K.C.M.G., 
UA ORME Oo Gal 5 gin oes oc | OE 
Scientific Factors of Industrial Success ..... 93 
Ci a Fa od oS 5 SI 
Our Astronomical Column :— 
Gomet Notes, : . .. _.2 7. Sesame ie o<tite lik ae OEE 
The Structure of the Hy Line in Stellar Spectra .. 99 
The Harvard College Observatory Report .... 100 
Star Charts for Meteor Observers HCN ce chs 168.2) 
Fluctuations of Temperature in Europe and 
Amencarciby:E. Gs (.. 5 ayes Le ee ee 
Refining Gold by Electrolysis. (///ustrated.) By Sir 
i) 5G Xo) ID So GLoTuem uo 5. ED 
Bird-Migration in 1913. By A.L.T. ....... I01 
The Institute of Metals. ByProf.H.C.H.Carpenter 102 
Supplies of Laboratory and Optical Glass Ap- 
paratus. Reports of the British Science Guild 103 
Geology in Relation to the Exact Sciences, with an 
Excursus on Geological Time. By Alfred Harker, 
FAR Se. on le RE! Po. SS eos 
University and Educational Intelligence . .... 109 
Societiesiand Academies!) [2.7% 2... 0 ae) EOD) 
Books Received wo day be ve) Rallsiite? Beye's! bo o| alae eae LLL 
Diary of/Societies. 5 39) Siegel ci sc. Ce epeeete een 
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