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RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS/ 
1907 - 1908 . 
Series A. — Mathematical and Physical. 
A 424. A New Current Weigher and a Determination of the Electromotive Force of the Normal Weston 
Cadmium Cell. By W. E. Ayrton, F.B.S., and T. Mather, F.B.S., Central Technical 
College, London, and F. E. Smith, A.B.C.Sc. (National Physical Laboratory, Teddington). 
Pp. 82; 2 Plates. Price 5s. 
A 425. The Silver Voltameter. Part I.—By F. E. Smith, A.B.C.Sc., and T. Mather, F.B.S. Part II. 
—By F. E. Smith, A.B.C.Sc., and T. M. Lowry, D.Sc. Pp. 55; 1 Plate. Price 3s. 
A 426. Title, Contents, Index, &c., Vol. 207. Pp. TO. Price 6 d. 
A 427. Further Consideration of the Stability of the Pear-shaped Figure of a Botating Mass of Liquid. 
By Sir G. H. Darwin, K.C.B., F.B.S., Plumian Professor of Astronomy, and Fellow of Trinity 
College, Cambridge. Pp. 19. Price Is. 
A 428. The Thermomagnetic Analysis of Meteoric and Artificial Nickel-iron Alloys. By S. W. J. Smith, 
M.A., A.B.C.S., Boyal College of Science, London. Pp. 89; 2 Plates. Price 5s. 6 cl. 
A 429. The Effect of Pressure upon Arc Spectra.—No. 1. Iron. By W. Geoffrey Duffield, B.Sc. 
(Adelaide), B.A. (Cantab.), Honorary Besearch Fellow in Physics at the Manchester University, 
Mackinnon Student of the Boyal Society. Pp. 52; 6 Plates. Price 3s. 6 d. 
A 430. The Diurnal Variation of Terrestrial Magnetism. By Arthur Schuster, F.B.S. Pp. 42 ; 
Price 2s. 
A 431. Magnetic Declination at Ivew Observatory 1890 to 1900. By C. Chree, Sc.D., LL.D., F.B.S. 
Superintendent Observatory Department, National Physical Laboratory. Pp. 42. Price 2s. 
A 432. The Effect of Hydrogen on the Discharge of Negative Electricity from Hot Platinum. By 
Professor H. A. Wilson, F.B.S., King’s College, London. Pp. 27. Price Is. 6 cl. 
A 433. Beport on the Eruptions of the Soufriere in St. Vincent in 1902, and on a Visit to Montague 
Pelee in Martinique—Part II. The Changes in the districts and the Subsequent History 
of the Volcanoes. By Tempest Anderson, M.D., D.Sc., F.G.S. Pp. 29; 17 Plates. 
Price 7s. Gd. 
Series B. — Biological. 
B 256. The Role of the Various Elements in the Development and Begeneration of Bone. By Sir 
William Macewen, F.B.S. Pp. 27. Price 2s. 
B 257. On the Cranial and Facial Characters of the Neandertal Bace. By W. J. Sollas, Sc.D., LL.D., 
F.B.S., Professor of Geology in the University of Oxford. Pp. 59; 1 Plate. Price 5s. 
B 258. The Ascent of Water in Trees. By A. J. Ewart, D.Sc., Ph.D., F.L.S., Government Botanist and 
Professor of Botany in Melbourne University. Pp. 52; 1 Plate. Price 3s. 
B 259. On the Skull, Mandible, and Milk Dentition of Palaeomastodon, with some Bemarks on the Tooth 
Change in the Proboscidea in General. By C. W. Andrews, D.Sc., F.B.S. (British Museum, 
Natural History). Pp. 15; 2 Plates. Price 2s. 6 cl. 
B 260. Miadesmia Membranacea, Bertrand; a New Palaeozoic Lycopod with a Seed-like Structure. By 
Margaret Benson, D.Sc., F.L.S., Boyal Holloway College, Englefield Green. Pp. 17; 
5 Plates. Price 2s. 
B 261. Title, Contents, Index, &e., Vol. 199. Pp. 10. Price Gd. 
B 262. On the Distribution of the Different Arteries supplying the Human Brain. By Charles E. 
Beevor, M.D. Lonch, F.B.C.P. Pp. 55; 8 Plates. Price 6s. Gd. 
B 263. Longitudinal Symmetry in Phanerogamia. By PERCY Groom, M.A., D.Sc., F.L.S. Pp. 59. 
Price 3s. 6 d. 
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