PHILOSOPHICAL —TRANSACTIONS 
1905 —1907. 
SERIES A. CONTAINING PAPERS OF A MATHEMATICAL OR PHYSICAL 
CHARACTER. | : : 
Vol. 206 (1906). Pp. 510. With 19 Plates. Price £1 Bs. 6d. 
Vol. 207 (1907). Pp. 602. With 9 Plates. Price £1 13s. 6d. 
SERIES B. CONTAINING PAPERS OF A BIOLOGICAL CHARACTER. 
Vol. 197 (1905). Pp. 408. With 22 Plates. Price £1 13s. 6d. 
Vol. 198 (1906). Pp. 508. With 31 Plates. Price £2 Is. Od. 
SOLD BY HARRISON ®& SONS, 45, ST. MARTIN’S LANE, W.C. 
RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS.’ 
A. 421. 
A. 422. 
A. 425. 
A. 424. 
A. 425. 
A. 426. 
A. 427. 
B. 254. 
B. 255. 
B. 256. 
B. 257. 
B. 258. 
B. 259. 
yn 
Sold separately by Dulau & Co., 37, Soho Square, London, W. 
ON THE SURFACE-TENSION OF LIQUIDS INVESTIGATED BY THE 
METHOD OF JET VIBRATION. By P. O. PEDERSEN. Pp. 52; 3 Plates. 
- Price 3s. 
THE NORMAL WESTON CADMIUM CELL. By F. E. SMITH, A.R.C.Se. 
(from the National Physical Laboratory). Pp. 28; 1 Plate. Price 2s. 
ELECTRIC FURNACE REACTIONS UNDER HIGH GASEOUS PRESSURES. 
By R. S. HUTTON and J. E. PETAVEL. Pp. 42; 1 Plate. Price 2s. 6d. 
A NEW CURRENT WEIGHER AND A DETERMINATION OF THE 
ELECTROMOTIVE FORCE OF THE NORMAL WESTON CADMIUM. 
CELL. By W. E. AYRTON, F.R.S., and T. MATHER, F.R.S., Central 
Technical College, London, and F. E. SMITH, A.R.C.Sc. (National Physical Laboratory, 
Teddington). Pp. 82; 2 Plates. Price 5s. 
THE SILVER VOLTAMETER. Part I.—By F. E. SMITH, A.R.C.Sc., and 
T. MATHER, F.R.S. Part II].—By F. E. SMITH, A.R.C.Sc., and T. M. LOWRY, 
Bsc. Pp. 55; 1 Plate: Price 3s. 
TITLE, CONTENTS, INDEX, &c., Vol. 207. Pp. 10. Price 6d. 
FURTHER CONSIDERATION OF THE STABILITY OF THE PEAR- 
SHAPED FIGURE OF A ROTATING MASS OF LIQUID. By Sir G. H. 
DARWIN, K.C.B., F.R.S., Plumian Professor of Astronomy, and Fellow of Trinity 
College, Cambridge. Pp. 19. Price Is. 
STUDIES ON THE DEVELOPMENT OF LARVAL NEPHRIDIA. PART II.— 
POLYGORDIUS. By CRESSWELL SHEARER, B.A., M.D., C.M., Trinity 
College, Cambridge. Pp. 32; 4 Plates. Price 4s. 
CASES OF COLOUR-BLINDNESS, No. VI TO No. XVIII, TOGETHER WITH 
ELEVEN SELECTED EXAMPLES OF NORMAL COLOUR SENSATIONS. 
By GEORGE, J. BURCH, M.A., D.Sc. Oxon, F.R.S., Lecturer in Physics, University 
College, Reading. Pp. 21. Price Is. 
THE ROLE OF THE VARIOUS ELEMENTS IN THE DEVELOPMENT 
AND REGENERATION OF BONE. By Sir WILLIAM MACEWEN, F.R.S. 
Pp. 27. Price 2s. 
ON THE CRANIAL AND FACIAL CHARACTERS OF THE NEANDERTAL 
RACE. By W. J. SOLLAS, Sc.D., LL.D., F.R.S., Professor of Geology in the 
University of Oxford. Pp. 59; 1 Plate. Price 5s. 
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 ;. 
I] Plate. Price 3s. 
ON THE SKULL, MANDIBLE, AND MILK DENTITION OF PAL/EO- 
MASTODON, WITH SOME: REMARKS ON THE TOOTH CHANGE IN 
THE PROBOSCIDEA. IN GENERAL. By C. W. ANDREWS, D.Sc., F.R.S. 
(British Museum, Natural History), Pp. 15; 2 Plates. Price 2s. 6d. 
