Philosophical Transactions 



1909- I9I0. 



SERIES A. CONTAINING PAPERS OF A MATHEMATICAL OR PHYSICAL 

 CHARACTER. 



Vol. 208(1908). Pp.530. With 33 Plates. Price £1188. 6d. 

 Vol. 209 (1909). Pp.480. With 13 Plates. Price £l 138. Od. 



SERIES B. CONTAINING PAPERS OF A BIOLOGICAL CHARACTER. 



Vol. 199(1908). Pp. 428. With 37 Plates. Price £1 168. Od. 

 Vol. 200(1909). Pp. 524. With 37 Plates. Price £2 5s. 6d. 



SOLD BY HARRISON 6" SONS, 45. ST. MARTIN S LANE. W.C. 



RECENT PAPERS IN THE PHILOSOPHICAL TRANSACTIONS.' 



Sold separately by Dulau & Co., Ltd., 37, Soho Square, London, W. 



A. 463. THE INITIAL ACCELERATED MOTION OF ELECTRIFIED SYSTEMS OF 

 FINITE EXTENT, AND THE REACTION PRODUCED BY THE 

 RESULTING RADIATION. By GEORGE W. WALKER. A.R.C.Sc, M.A. 

 Superintendent of iLskdalemuir Magnetic Observatory. Pp. 53. Price 28. 6d. 



A. 464. ON THE SPECIFIC HEATS OF AIR AND CARBON DIOXIDE AT 

 ATMOSPHERIC PRESSURE BY THE CONTINUOUS ELECTRIC 

 METHOD AT 20' C. AND 100° C. By W. F. G. SWANN. A.R.C.S.. B.Sc. 

 Assistant Lecturer in Physics at Sheffield University. Pp. 40. Price 2s. 



A. 465. THE EXTINCTION OF SOUND IN A VISCOUS ATMOSPHERE BY SMALL 

 OBSTACLES OF CYLINDRICAL AND SPHERICAL FORM. By C. J. T. 

 SEWELL, B.A., Trinity College, Cambridge. Pp.32. Price Is. 6d. 



A. 466. SOME PHENOMENA OF MAGNETIC DISTURBANCES AT KEW. By 

 CHARLES CHREE. Sc.D., LL.D., F.R.S., Superintendent of the Observatory 

 Department of the National Physical Laboratory. (From the National Physical Laboratory.) 

 Pp. 36. Price 2s. 



A. 467. THE APPROXIMATE ARITHMETICAL SOLUTION BY FINITE DIFFER- 

 ENCES OF PHYSICAL PROBLEMS INVOLVING DIFFERENTIAL 

 EQUATIONS, WITH AN APPLICATION TO THE STRESSES IN A 

 MASONRY DAM. By L. F. RICHARDSON, King's College, Cambridge. 

 Pp. 5 1 . Price 3s. 6d. 



A. 468. ON SCANDIUM.— Part II. By Sir WILLIAM CROOKES. D.Sc, LL.D., 



For. Sec. R.S. Pp.28. Price Is. 6d. 



B. 27L THE INTRACRANIAL VASCULAR SYSTEM OF SPHENODON. By 



ARTHUR DENDY, D.Sc. F.R.S., Sec L.S., F.Z.S., Professor of Zoology in King's 

 College (University of London). Pp. 24 ; 1 Plate. Price 2s. 



B. 272. THE GIANT NERVE CELLS AND FIBRES OF HALLA PARTHENOPEIA. 



By J. H. ASHWORTH, D.Sc, Lecturer in Invertebrate Zoology in the University of 

 Edinburgh. Pp. 95 ; 6 Plates. Price 12s. 6d. 



B. 273. TITLE, CONTENTS, INDEX. &c.. Vol. 200. Pp. 10. Price 6d. 



B. 274. STUDIES ON THE STRUCTURE AND AFFINITIES OF CRETACEOUS 

 PLANTS. By MARIE C. STORES. D.Sc. Ph.D., F.L.S., Lecturer in Fossil Botany 

 in the University of Manchester, and K. FUJII. Ph.D.. Assistant Professor of Botany in the 

 Imperial University of Tokio. Pp. 90 ; 9 Plates. Price 6s. 6d. 



B. 275. THE THYROID AND PARATHYROID GLANDS THROUGHOUT VERTE- 

 BRATES. WITH OBSERVATIONS ON SOME OTHER CLOSELY 

 RELATED STRUCTURES. By F. D. THOMPSON. Pp. 42; 5 Plates. 

 Price 4s. 6d. 



B. 276. THE BLOOD VOLUME OF MAMMALS AS DETERMINED BY EXPERI- 

 MENTS UPON RABBITS, GUINEA-PIGS, AND MICE; AND ITS RELA- 

 TIONSHIP TO THE BODY WEIGHT AND TO THE SURFACE AREA 

 EXPRESSED IN A FORMULA. By GEORGES DREYER, M.A., M.D., 

 Professor of Pathology in the University of Oxford, and WILLIAM RAY, B.Sc, M.B., 

 Philip Walker Student in Pathology in the University of Oxford. Pp. 28. Price 1 s. 6d. 



