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RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS/ 
1916-17. 
Series A.—Mathematical and Physical. 
A 543. On the Law of Distribution of Molecular Velocities, and on the Theory of Viscosity and Thermal 
Conduction, in a Non-uniform Simple Monatomic Gas. By S. Chapman, M.A., D.Sc., Fellow 
and Lecturer of Trinity College, Cambridge. Pp. 70. Price 3s. Qd. 
A 544. The Newtonian Constant of Gravitation as Affected by Temperature. By P. E. Shaw, B.A., 
D.Sc. Pp. 44. Price 2s. 6 d. 
A 545. The Combining Volumes of Hydrogen and Oxygen. By F. P. Burt, D.Sc., and E. C. Edgar, 
D.Sc., Senior Lecturers in Chemistry in the University of Manchester. Pp. 35. Price 2s. 
A 546. Mathematical Contributions to the Theory of Evolution. XIX.—Second Supplement to a 
Memoir on Skew Variation. By Karl Pearson, F.E.S. Pp. 29 ; 1 Plate. Price Is. 6 d. 
A 547. On the Distribution of Intensity in Broadened Spectrum Lines. By J. W. Nicholson, M.A., 
D.Sc., Professor of Mathematics in the University of London, and T. B. Merton, D.Sc. (Oxon), 
Lecturer in Spectroscopy in the University of London, King’s College. Pp. 30; 1 Plate. 
Price 2s. 
A 548. Title, Contents, Index, &c., Vol. 216. Pp. 10. Price 6 d. 
A 549. On the Instability of the Pear-shaped Figure of Equilibrium of a Rotating Mass of Liquid. By 
J. H. Jeans, M.A., F.R.S. Pp. 34. Price Is. Qd. 
A 550. On Periodic Disturbance of Level Arising from the Load of Neighbouring Oceanic Tides. By 
K. Terazawa, Ri-Gakushi of the Imperial University of Tokyo. Pp. 16. Price Is. 
A 551. The Genesis of Pleochroic Haloes. By J. Joly, Sc.D., F.R.S., Professor of Geology and 
Mineralogy in the University of Dublin. Pp. 29 ; 1 Plate. Price 2s. 
Series B. — Biological. 
B 346. On the Structure of the Dicynodont Skull. By Igerna B. J. Sollas and W. J. Sollas, F.R.S. 
Pp. 9 ; 2 Plates. Price Is. Qd. 
B 347. Title, Contents, Index, &c., Vol. 207. Pp. 10. Price Qd. 
B 348. On the Action of Cobra Venom. Parts I and II. By Arthur R. Cushny, F.R.S., and S. Yagi. 
Pp. 36. Price 2s. 
B 349. The Convolutional Pattern of the Brains of Identical Twins: a Study on Hereditary 
Resemblance in the Furrows of the Cerebral Hemispheres. By F. Sano, M.D. (Brussels), 
Physician in Chief to the Asylum for Acute Mental Cases at Antwerp (Belgium). Pp. 25. 
Price Is. Qd. 
B 350. The Skull of Ichthyosaurus, Studied in Serial Sections. By V 7 ". J. Sollas, F.R.S., Professor of 
Geology in the University of Oxford. Pp. 64; 1 Plate. Price 4s. 
B 351. On the Fossil Floras of the Coal Measures of South Staffordshire. By E. A. Newell Arber, 
M.A., Sc.D., F.G.S., Trinity College, Cambridge, University Demonstrator in Palseobotany. 
Pp. 29; 3 Plates. Price 2s. Qd. 
B 352. Analyses of Agricultural Yield. Part III.—The Influence of Natural Environmental Factors 
upon the Yield of Egyptian Cotton. By W. Lawrence Balls, Sc.D., late Fellow of 
St. John’s College, Cambridge. Pp. 67. Price 5s. 
B 353. An Investigation into the Periodicity of Measles Epidemics in London from 1703 to the Present 
Day by the Method of the Periodogram. By John Brownlee, M.D., D.Sc. Pp. 26. 
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