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A 546. Mathematical Contributions to the Theory of Evolution. XIX.—Second Supplement to a 
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A 547. On the Distribution of Intensity in Broadened Spectrum Lines. By J. YV. Nicholson, M.A., 
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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 
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A 550. On Periodic Disturbance of Level Arising from the Load of Neighbouring Oceanic Tides. By 
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A 551. The Genesis of Pleochroic Haloes. By J. Joly, Sc.D., F.R.S., Professor of Geology and 
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A 552. Seventh Memoir on the Partition of Numbers. A Detailed Study of the Enumeration of the 
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B 346. On the Structure of the Dicynodont Skull. By Igerna B. J. Sollas and "YV. J. Sollas, F.R.S. 
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B 347. Title, Contents, Index, &c., 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. Yagi. 
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B 349. The Convolutional Pattern of the Brains of Identical Twins: A Study on Hereditary 
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B 350. The Skull of Ichthyosaurus, Studied in Serial Sections. By W. J. Sollas, F.R.S., Professor of 
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B 351. On the Fossil Floras of the Coal Measures of South Staffordshire. By E. A. Newell Arber, 
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