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RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS,’ 
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Series A.—Mathematical and Physical. 
A 479. Memoir on the Theory of the Partitions of Numbers. Part VI. Partitions in Tv/o-dimensional 
Space, to which is a-clcled an Adumbration of the Theory of the Partitions in Three-dimensional 
Space. By Major P. A. MacMahon, E.A., D.Sc., LL.D., F.E.S. Pp. 29. Price Is. Qd. 
A 480. Eadiation in Explosions of Coal-Gas and Air. By W. T. David, B.A., B.Sc., Trinity College, 
Cambridge. Pp. 36. Price 2s. 
A 481. On the Series of Sturm and Liouville, as Derived from a Pair of Fundamental Integral 
Ec[uations instead of a Differential Equation. By A. C. Dixon, F.E.S., Professor of 
Mathematics, Queen’s University, Belfast. Pp. 22. Price Is. 
A 482. The Kinetic Theory of a jjias Constituted of Spherically Symmetrical Molecules. By 
S. Chapman, M.Sc., Trinity College, Cambridge; Chief Assistant, Eoyal Observatory, 
Greenwich. Pp. 51. Price 2s. %d. 
A 483. Title, Contents, Index, &c., Vol. 211. Pp. 10. Price &d. 
A 484. Bakerian Lecture. —On the Variation of the Specific Heat of Water, with Experiments by a 
New Method. By H. L. Callendar, M.A., LL.D., F.E.S., Professor of Physics at the Imperial 
College of Science and Technology, London, S.W. Pp. 32. Price Is. 6f?. 
A 485. A Critical Study of Spectral Series.—Part II. They) and s Sequences and the Atomic Volume 
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Series B. — Biological. 
B 288. Lapworthura; A Typical Brittlestar of the Silurian Age; with Suggestions for a New 
Classification of the Ophiuroidea. By Igerna B. J. Sollas, B.Sc., Lecturer on Zoology in 
Newnham College, Cambridge, and W. J. SoLLAS, F.E.S., Professor of Geology and 
Palaeontology in the University of Oxford. Pp. 20; 2 Plates. Price Is. Qd. 
B 289. On the Fossil Flora of the Forest of Dean Coalfield (Gloucestershire), and the Eelationships of 
the Coalfields of the AVest of England and South Wales. By E. A. Newell Arber, M.A., 
F.L.S., F.G.S., Trinity College, Cambridge, University Demonstrator in Palaeobotany. Pp. 49; 
3 Plates. Price 3s. 6i. 
B 290. On the Discovery of a Novel Type of Flint Implements below the Base of the Eed Crag of 
Suffolk, proving the Existence of Skilled Workers of Flint in the Pliocene Age. By Sir Eay 
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B 291. On the Distribution of the Nerves of the Dental Pulp. By J. Howard Mummery, M.E.C.S., 
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B 292. The Human Electrocardiogram: A Preliminary Investigation of Young Male Adults, to Form a 
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B 293. Title, Contents, Index, &e., Vol. 202. Pp. 10. Price 6rf. 
B 294. A Metrical Analysis of Chromosome Complexes, showing Correlation of Evolutionary 
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B 295. Petrifactions of the Earliest European Angiosperms. By Marie C. Stores, D.Sc., Ph.D., F.L.S., 
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