396 
Syllabus of the Lessons on Marine Biology and 
Navigation for Fishermen, given at the Marine 
Laboratory, Piel, Barrow-in-Furness, by the Lan- 
cashire and Western Sea-Fisheries Joint-Committee. 
Third edition. Pp. 105+xiv plates. (Liverpool: C. 
Tinling and Co., Ltd.) 
Report for 1913 on the Lancashire Sea-Fisheries 
Laboratory at the University of Liverpool and the 
Sea-Fish Hatchery at Piel. Edited by Prof. W. A. 
Herdman. Pp. 376. (Liverpool: C. Tinling and Co., 
Ltd.) 
The Microscopy of Drinking Water. By Prof. G.C. 
Whipple. Third edition. Pp. xxi+4og+plates xix. 
(New York: J. Wiley and Sons, Inc.; London : Chap- 
man and Hall, Ltd.) 17s. net: 
Nature in Books. By J. L. Robertson. Pp. 156. 
(Oxford University Press.) 2s. 
_ Evolution and the Need of Atonement. By S. A. 
McDowall. Second edition. Pp. xx+183. (Cam- 
bridge University Press.) 4s. 6d. net. 
Perception, Physics, and Reality. By C. D. Broad. 
Pp. xii+388. (Cambridge University Press.) ros. 
net. 
The Philosophy of Biology. By Dr. J. Johnstone. 
Pp. xv+391. (Cambridge University Press.) gs. net. 
Memoirs of the Geological Survey of Great Britain. 
Paleontology. Vol. i. Part 4. The British Carbon- 
iferous Producti: i., Genera Pustula and Overtonia. 
By Dr. I. Thomas. (London: H.M.S.O.; E. Stan- 
ford, Ltd.) 6s. 
New Zealand Department of Mines. New Zealand 
Geological Survey. Paleontological Bulletin. No. rt. 
Materials for the Palezontology of New Zealand. By 
Dr. J. A. Thomson. Pp. 104. (Wellington, N.Z.: 
J. Mackay.) 
DIARY OF SOCIETIES. 
THURSDAY, June 11. 
Roya Society, at 4.30.—Croonian Lecture: The Beari i 
Research on Hereding : Prof. E. B. Wilson. Te ot ee 
Roya Instirution, at 3.—Faraday and the Foundations of Electrical 
Engineering : Prof. S, P. Thompson. 
Farapay Society, at 8.—Presidential Address: Advances in the Metal- 
lurgy of Iron and Steel: Sir R. Hadfield. 
FRIDAY, June 12. 
Rovat InsTITUTION, at 9.—Some Aspects of the American J: 
The Hon. W. H. pager : eae 
Royat AstTrRonomicat SociEry, at 5.— Magnitude of y Argtis, and Dis- 
covery of a Close Companion to it: R. T. A. Innes.—A New Variable 
Star in Carina: H. E. Wood.—The Nebula HV 25 Ceti: Mrs. Isaac 
Roberts. —Comparison of Hill’s and Le Verrier’s Tables of Saturn: H. H. 
Turner.—An Area of Long-continued Solar Disturbance, and Associated 
Magnetic Storms: Rev A. L. Cortie.—Correction to Note on Spectro- 
scopic Binaries and the Velocity of light: R. S. Capon.—Note on the 
Number of Components of a Compound Periodic Fun: tion: J. B. Dale.-- 
Three Variable Stars in the Region of x Persei: Dunsink Observatory.— 
Note on the Velocity of Light and Doppler’s Principle: H. C. Plummer. 
—Dimensions Of Saturn and his Rings, as Measured on Prof. Barnard’s 
Photograph of ig11, November 19: the Transparency of Ring A and 
other Details shown on the Photograph: P. H. Hepburn.—Nebulz seen 
on Mr. Franklin-Adam’s Plates: J. A. Hardcasile.—Note on the Star 41 
Virginis: E. W. Barlow. Probable Paper: Periodic Inequalities in the 
Epochs of Sun-spot Maxima and Minma: J. B. Dale. 
‘-Puysica Society, at 8.—Note on the Connection between the Method of 
Least Squares anc the Fourier Method of Calculating the Co-efficients of 
a Trigonometrical Series 10 Represent a Given Function or Series of 
Otservations: Prof. C..H. Lees.—A Magnet graph .or Measuring Varia- 
tions in the Horizontal Intensity of the Earth's Magnetic Field: F. E. 
Smith. — The Atomic Weight of Copper by Electrolysis: A. G. Shrimpton. 
—Note on an Improvement in the Einthoven String Galvanometer : 
W. H. Apthorpe. 7 
MALACOLOGICAL SocIETY, at 8.—Swleobasis concisa, Fer., and its Nearest 
Allies: C_R. Boettger.—Note on the radula and maxilla of Orthalicus 
zebra, Miiller: Rev. E. W. Bowell.—(z) Invalid Mollu-can Generic 
Names ; (2) A New Cassid: T. Iredale.—The Relative Claim to Priority 
of the Names Helix carduelis, Schulze, and Helix Sruticum, Miiller: 
G. K. Gude. 
SATURDAY, June 13. 
Roya INSTITUTION, at 3.—Studies on Expression in Art. II: Right 
Expression in Modern Conditions : Sigismund Goetze. 
NO+2328, VOL. 93) 
NATURE 
[JUNE II, 1914 
TUESDAY, Yount 16. 
MINERALOGICAL SOCIETY, at 5.30.—Childrenite from Crinnis Mine, Corn’ 
wall, and Eosphorite from Poland, Maine: J. Drugman.—Sartorite : 
R. H. Solly. —Red-terminations of Nickel in the Baroti and Wittekrantz 
Meteorites : G. T. Prior. 
RovaL ANTHROPOLOGICAL INSTITUTE, at 8.15.—The Cheddar Man, a 
Skeleton of Late Palzolithic Age: Profs. C. G. Seligmann and F. G 
Parsons. 
ROYAL STATISTICAL SOCIETY, at 5.—Economic Relations of the British 
and German Empires: E. Crammond. s 
Royal. GEOGRAPHICAL SOCIETY, at 8.30.—An Expedition in Brazil: Hon. 
. Theodore Roosevelt. - ; 
WEDNESDAY, June 17. ; 
Rovat METEOROLOGICAL SOCIETY, at 4.20.—Vhe Rainfall of the Southern 
Pennines: B. C. Wallis.—The Relation between Wind Direction and 
Rainfall: H. J. Bartlett. 
THURSDAY, June 18. 
Roya Society, at 4.30.—Po0bable Papers: (1) Trypanosome Diseases of 
Domestic Animals in Nyasaland. 77yfJanosoma Caprae (Kleine). IIIT: 
Development in Glossina morsitans ; (2) Trypanosomes found in Wild 
Glossina morsitans and Wild Game in ‘the “ Fly-Belt’’ of the Upper 
Shire Valley; (3) Tbe Food of Glossina morsitans ; (4) Infectivity of 
Glossina morsitans in Nyasaland during 1912 and 1913: Sir D. Bruce, 
Maj. A. E. Hamerton, Capt. D. P. Watson and Lady Bruce.—The 
Relation between the Thymus and the Generative Organs, and on the 
Influence of these Organs upon Growth (With a Note by G. U. Yule): 
E. T. Halnanand F. H. A. Marshall.—The Vapour Pressure Hypothesis 
of Contraction of Striated Muscle: H. E. Roaf.—The Validity of the 
Microchemical Test for the Oxygen Piace in Tissues: A. N. Drury.— 
Man’s Mechanical Efficiency: Prof. J. S. Macdonald.—The Colouring 
Matters in the Compound Ascidian Drazona violacea, Savigny: Dr. A. 
Holt. 
= 
CONTENTS. PAGE 
The Purpose of Youth : titel ce dap a eee ees al 
Manualsiof Botany...) Byy Vo Be we) ones 
German Popular Science aM csi oot Sida» oh oat log cep ae TI 
Our Bookshelf ; aed tes sh So OV” pint ee ES 
Letters to the Editor :— 
Weather Forecasts in England.—Dr. W. N. Shaw, 
| shad RSs He eR oe 2 Ge ieee : 3 375 
Cellular Structure of Emulsions.—Chas. R. Darling 376 
Band vy Rays and the Structure of the Atom (Internal 
Charge Numbers.)—Dr. A. van den Broek . 376 
Forestry and Forest kKeserves in New Zealand. By 
B..C2 5 any 
The Principle of Relativity.—I. By E.Cunningham 378 
Dra j., Reynolds Green; JRaR@S: eBy) Profesare.. 
Wanes. FR. S...::-- = scamagee = meee ints pea TO 
Notes: «.(///ustrated:) .c/. i. Sin ths ed 
Our Astronomical Column :— 
Astronomical Occurrences for June ....... » 384 
Comet'19140 (Zlatinsky)a20-) eee) eee et 
Fireballs - . . : bite: De Pag et) sa. igh ES OEE 
Observations of Nove... Aida SSMS screen ¢ Shai 
Report of the Cape Observatonys.ms eee) eine 385 
The Administration of Anesthetics ...... . 385 
Wireless Telegraphy Research ete Ret re o ayols 
The Association of Teachers in Technical Institu- 
HONS) is) 3 @0 See cnt) gaues ae os 
Devonian of Maryland. By A. J. Jukes-Browne, 
Hee Se F : : Ata. A he 33° a eae ee 
The Royal Observatory, Greenwich. ...... . 387 
(The Development of the Aeroplane. © = . 2%). 2938 
The Metric System. By Alexander Siemens .. . 390 
University and Educational Intelligence. . . . . . 392 
sacicticsiand Academies {jase tts Cee OR 
Books keceived . PET Bo Go 6 Renee co FIR 
Branyvor Societies. . . . 2 cle eee) cee 
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