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J. BP.) M’Gowan.- — Pps ux+a76:- - (Edinburgh) Sw. 
Blackwood and Sons.) 
Cambridge Manuals of Science and Literature: The 
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DIARY OF SOCIETIES. 
THURSDAY, June 18. 
Roya Society, at 4.30.—(t) Trypanosome Diseases of Domestic Animals 
in Nyasaland. Trypanosoma Caprae, Kleine. II]: Development in 
Glossina morsitans ; (2) Trypanosomes found in Wild Glossina morsitans 
and Wild Game in the “ Fly-Belt” of the Upper Shire Valley ; (3) The 
Food of. Glossina morsitans ; (4) Infectivity of Glossina morsitans in 
Nyasaland during 1912 and ror3: Sir D. Bruce, Maj. A. E. Hamerton, 
Capt. D. P. Watson and Lady Bruce.—A Description of the Skull and 
Skeleton of a Peculiarly Modified Rupicaprine Antelope J7yotragus 
balearvicus, Bate: Dr. C. W. Andrews.—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 Place in Tissues: A. N. Drury.—Man’s Mechanical Efficiency : 
Prof. J. S. Macdonald.—The Colouring Matters in the Compound Ascidian 
Diazona violacea, Savigny: Dr. A. Holt.—Some Accessory Factors in 
Plant Growth and Nutritition: Prof. W. B. Bottomley.—A Photographic 
Analysis of Explosion-flames Traversing a Magnetic Field: Prof. H. B. 
Dixon, C. Campbell, and W. E. Slater. 
Linnean Society, at 8.—Reports on the Marine Biology of the Sudanese 
Red Sea: The Brachyura: R. Douglas Laurie.—A Revision of the 
Recent Colonial Astraide Possessing Distinct Coralites: G. Matthai.— 
Two Lithens: Lecanora isidioides, Nyl., from the New Forest ; and 
Parmelia revoluta var. concentrica, Cromb., from Seaford Downs: R. 
Paulson.—Ecological Notes, chiefly Cryptogamia ; the late W. West.— 
Life-histories and Descriptions of Australian A°schine. (With a Descrip- 
tion of a New Form of Velephebia by H. Campion): R. J. Tillyard.— 
The life-history avd Structure of Tedephorus lituratus : Miss Olga G. M. 
Payne. - Cucujidz, Cryptophagidz, avec une Description de la larve et 
de la nymphe de Protominia convexiuscula, Grouvelle: A. Grouvelle.— 
Mallophaga, Aphaniptera, and Diptera Puparia. (Percy Sladen Expedi- 
tion): H. Scott.—Short Cuts to Nectaries by Blue Tits: C. F. M. 
NO:/2329, VOL.93 | 
NATURE 
[June 18, 1914 
Swynnerton.—-Photographs of Large-tailed Sheep of the Punjab: Dr. G. 
Henderson. Shs (Me? ; 
Royat GEOGRAPHICAL SOCIETY, at 5:—Final Report on the Rivers Investi- 
gation: Dr. A. Strahan and Others. 
MONDAY, June 22. { 
Royvat GEOGRAPHICAL SOCIETY, at 8.30.—Exploration in the Unknown 
Brahmaputra Region on the North-Eastern Frontier of India: Captain 
F. M. Bailey. 3 sane ’ 
VicTorIA INSTITUTE, at 4.30.—Annual Address: Jerusalem, Past and 
Present : Sir C. M. Watson. ; 
WEDNESDAY, JUNE 24. 
GroLocicat Society, at 8.—The Trilobite Fauna of the Abbey Shales, 
near Hartshill: V. C. Illing.—Notes on the Trilobite Fauna of the Middle 
Cambrian ofthe St. Tudwal’s Peninsula(Carnarvonshire) : T. C. Nicholas. 
THURSDAY, JUNE 25. : 
Roya Society, at 4.30.—P20bable Papers: Note on Mr. Mallock’s Obser- 
vations on Intermittent Vision : Prof. S. P. Thompson.—The Variation of 
Electrical Potential across a Semipermeable Membrane: Prof. F. G. 
Donnan and G. M. Green.—The Potential of Ellipsoidal Bodies and the 
Figures of Equilibrium of Rotating Liquid Masses: J. H. Jeans.—The 
Twenty-seven-Day Period in Magnetic Phenomena: Dr. .C. Chree.— 
Electrification of Water by Splashing and Spraying: J. J. Nolan.— 
Attempts to Produce the Rare Gases by Electric Discharge: T. R. Merton. 
—The Analysis of Gases after Passage of Electric Discharges: O. C. G. 
Egerton.—And other Papers. 
CONTENTS. PAGE 
Studies in Cancer and Allied Subjects. ByE.F. B. 397 
A New Tactical Treatise . gh ah oe ee GO 
aiteeAnion's: the E.skimiol s5 sp. een LOC! 
@GuriBookshelf ......: sa ae rence Ane Dsig' 'c, COL 
Letters to the Editor :— 
Migration Routes.—Horace Darwin, F.R.S. . . . 401 
Aeroplane Wings.—Prof. Herbert Chatley.... 401 
Weather Forecasts in England.—R. M. Deeley . . 402 
The Thunderstorm of June 14 at Dulwich.—Wm. 
Wiarriott: \.. Saeed : oe 6 ein ie CL 
A Dual Phenomenon with X-Radiation.—I. G. 
Rankin; W.F. D. Chambers _ . . ce 
Legislation and the Milk Supply. By Prof. R. T. 
Hewlett . ne So weil tsy Mop to day 403 
The Commemoration of Roger Bacon at Oxford. 
402 
Wizsizated.) By F. As Degen ne ese neem lg 
The Committee on Wireless Telegraphy Research, 
By.A. A. Campbell Swinton Boe Re) ee 
The Urgent Need for Anthropological Investigation. 
Byer ALC) Haddon hekis.s) eee ee -"e 4Oz 
The Principle of Relativity.—II. By E. Cunning-' 
EVGA) SED oo. Sash te 0a cl A Oe et 
Prof. Hugo Kronecker, For.Mem.R.S. By Sir 
Lauder Brunton, Bart., F.R.S. : » 5 eee 
INDE Sw). | 2 Se ere 
Our Astronomical Column :— 
The New Zealand Solar Observatory «int ME, teen 
The Positions of Variables and Asteroids Discovered ) 
at the Lowell Observatory .. . 415 
Radial Velocities of 100 Siars with Measured Parallaxes 416 
Third International Congress of Tropical Agricul- 
(Ob hn ener Mi ie) eee ek AUG 
Opening of the New Physiological Laboratory at 
Cambridge. Honorary Degrees Conferred ... 417 
The Carnegie Foundation for the Advancement of 
BEACH es 1-77). eee ike Memb te Lite 
University and Educational Intelligence. . i GLO: 
Societies and Academies .@ . 5 2°) 3°. . eee 
ooks*Receivéed . .. . 4). ya. eee 
Diam or msocietics . . 23, Ran ene oe . 422 
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