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RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS,’ 
1913. 
A 504. 
A 505. 
A 506. 
A 507. 
A 508. 
A 509. 
A 510. 
A 511. 
A 512. 
B 308. 
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Series A.—Mathematical and Physical. 
A Critical Study of Spectral Series.—Part III. The Atomic Weight Term and its Import in the 
Constitution of Spectra. By W. M. Hicks, F.R.S. Pp. 98. Price 4s. 6 d. 
On the Self-inductance of Circular Coils of Rectangular Section. By T. R. Lyle, M.A., Sc.D., 
F.R.S. Pp. 15. Price Is. 
A Method of Measuring the Pressure Produced in the Detonation of High Explosives or by the 
Impact of Bullets. By Bertram Hopkinson, F.R.S. Pp. 20. Price Is. 6d. 
Gravitational Instability and the Nebular Hypothesis. By J. H. Jeans, M.A.,’ F.R.S. Pp. 29. 
Price Is. 6rf. 
Title, Contents, Index, &c., Yol. 213. Pp. 8. Price 6d. 
The Preparation of Eye-preserving Glass for Spectacles. By Sir William Crookes, O.M., F.R.S. 
Pp. 25. Price Is. 6d. 
Absolute Measurements of a Resistance by a Method Based on that of Lorenz. By F. E. 
Smith, A.R.C.Sc. (From the National Physical Laboratory.) Pp. 82. Price 4s. 6 d. 
The Influence of Molecular Constitution and Temperature of Magnetic Susceptibility. By 
A. E. Oxley, B.A., M.Sc., Coutts Trotter Student, Trinity College, Cambridge. Pp. 38. 
Price 3s. 
A Determination of the Electromotive Force of the Weston Normal Cell in Semi-absolute Volts. 
By A. Norman Shaw, M.Sc., 1851 Exhibitioner, and King Research Fellow, McGill 
University, Montreal. With a Preface by Prof. H. L. Callendar, F.R.S. Pp. 52 ; 2 Plates. 
Price 3s. 
Series B. — Biological. 
A Study of the Skull of a Dicynodon by Means of Serial Sections. By Igerna B. J. Sollas. 
B.Sc., Fellow of Newnham College, Cambridge, and W. J. Sollas, F.R.S., Professor of 
Geology and Palseontology in the University of Oxford. Pp. 25 ; 2 Plates. Price 2s. 
An Investigation by Pedigree Breeding into the Polymorphism of Papilio polytes, Linn. By 
J. C. F. Fryer, M.A., F.E.S., Fellow of Gonville and Caius College, late Balfour Student in. 
the University of Cambridge. Pp. 28. Price Is. 6 d. 
On the Experimental Hybridization of Echinoids. By Cresswell Shearer, Walter de 
Morgan, and H. M. Fuchs. Pp. 108; 7 Plates. Price 10s. 6 d. 
On the Fossil Floras of the Wyre Forest, with Special Reference to the Geology of the Coalfield 
and its Relationships to the Neighbouring Coal Measure Areas. By E. A. Newell Arber, 
M.A., Sc.D., F.G.S., F.L.S., Trinity College, Cambridge, University Demonstrator in Palaeo- 
botany. Pp. 83; 4 Plates. Price 4s. 6 d. 
Title, Contents, Index, &c., Yol. 204. Pp. 10. Price 6 d. 
On Dimensions of Chromosomes considered in Relation to Phylogeny. By J. Bretland 
Farmer, F.R.S., and L. Digby. Pp. 25; 2 Plates. Price 3s. 
Experiments on the Restoration of Paralysed Muscles by Means of Nerve Anastomosis. By 
Robert Kennedy, M.A., D.Sc., M.D., St. Mungo Professor of Surgery in the University of 
Glasgow. Pp. 50; 2 Plates. Price 3s. 
Some Notes on Soil Protozoa. By C. H. Martin, M.A., and K. R. Lewin, B.A., Rothamsted 
Experimental Station. Pp. 18; 2 Plates. Price 3s, [In the Press. 
On the Process of Calcification in Enamel and Dentine. By J. Howard Mummery, M.R.C.S., 
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Cloth cases for binding the ‘ Philosophical Transactions ’ can be obtained of Harrison and Sons, 
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