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RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS’ 
1916. 
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. 6 d. 
A 544. The Newtonian Constant of Gravitation as Affected by Temperature. By P. E. Shaw, B.A.. 
D.Sc. Pp. 44. Price 2s. 6d. 
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.R.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. R. 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, &e., Vol. 216. Pp. 10. Price 6L 
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. 6 d. 
A 550. On Periodic Disturbance of Level Arising from the Load of Neighbouring Oceanic Tides. BP 
K. Terazawa, Ri-Galrushi of the Imperial University of Tokyo. Pp. 16. Price Is. 
Series B. — Biological. 
B 345. The Electrical Conductivity of Echinoderm Eggs, and its Bearing on the Problems of Fertilisation 
and Artificial Parthenogenesis. By James Gray, M.A., Fellow of King’s College, Cambridge'; 
Captain, 5th Battalion, Queen’s Royal West Surrey Regiment. Pp. 49. Price 3s. 
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, &e., Vol. 207. Pp. 10. Price 6 d. 
B 348. On the Action of Cobra Venom. Parts I and II. By Arthur R. Cushny, F.R.S., and S. Yagl 
P p. 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. 6 d. 
B 350. The Skull of Ichthyosaurus, Studied in Serial Sections. By W. 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. 6 d. 
B 352. Analyses of Agricultural Yield. Part III.—The Influence of Natural Environmental Factor* 
upon the Yield of Egyptian Cotton. By W. Lawrence Balls, Sc.D., late Fellow of 
St. John’s College, Cambridge. Pp. 67. Price os. 
Cloth cases for binding the ‘ Philosophical Transactions ’ can be obtained of Harrison and Sons, 
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