CONTENTS (continued). 

 May 19, 1881. 



PAGE 



I. On Discontinuous Phosphorescent Spectra in High Vacua. By William 



Ceookes, F.B.S. 206 



II. Molecular Magnetism. By Professor D. E. Hughes, F.E.S. . . . 213 



III. On the Identity of Spectral Lines of Different Elements. By Gr. D. 



Liyeing, M.A., F.E.S., Professor of Chemistry, and J. Dewae, M.A., 

 F.E.S. , Jacksonian Professor, University of Cambridge. . . . 225 



IV. Observations concerning Transplantation of Bone. Illustrated by a Case 



of Inter-human Osseous Transplantation, whereby over two-thirds of 



the Shaft of a Humerus was restored. By W. Macewen, M.D. . . 232 



V. Experimental Determination of the Velocity of White and of Coloured 



Light. By Dr. J. Young, F.B.S. , and Professor Gr. Forbes . . 247 



List of Presents ............ 249 



On the Absorption Spectra of Cobalt Salts. By William J. Eussell, 

 Ph.D.,F.E.S., Treas. C.S., Lecturer on Chemistry at the Medical School, 

 St. Bartholomew's Hospital ......... 258 



On the Female Organs and Placentation of the Eacoon (Procyon lotor). By 

 M. Watson, M.D., Professor of Anatomy, Owens College, Manchester 

 (Plates 3-6) . . . ... . . . . 272. 



On the Diastase of Koji. By E. W. Atkinson, B.Sc. (Lond.), Professor of 



Analytical and Applied Chemistry in the University of Tokio, Japan . 299 



Obituary Notice : — 



Michel Chasles . . i 



Received since the end of the Session. 



Preliminary Note on the Photographic Spectrum of Comet (June, 1881) . By 

 William Huggins, D.C.L., LL.D., F.R.S. 



Note on the Beversal of the Spectrum of Cyanogen. By Gr. D. Liveing, 

 M.A., F.B.S., Professor of Chemistry, and J. Dewar, M.A., F.E.S., 

 Jacksonian Professor, University of Cambridge. 



CATALOGUE OF SCIENTIFIC PAPEES, COMPILED BY THE EOYAL 



SOCIETY. 



Published by Her Majesty's Stationery Office. 

 8 vols., 4to. 1800—1873. Per vol. : 20s., cloth ; 28s., half -morocco. 

 On Sale by Murray, Albemarle Street, and Trubner and Co., Ludgate Hill. 



HARRISON AND SONS, 45 & 46, ST. MARTIN'S LANE, W.C., 

 and all booe:sellers. 



