PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



vol. xxxiii. No. 21 0. 



CONTENTS. 



November 17, 1881. 



I. Preliminary Notes on the Photographic Spectrum of Comet 

 William HuGaitfS, D.C.L., LL,D., F.R.S. (Plate 1) 



II. Note on the Reversal of the Spectrum of Cyanogen. By G-. J). 

 Lively G-, M.A., F.R.S., Professor of Chemistry, and J. Dewab, 

 M.A., F.R.S., Jacksonian Professor, University of Cambridge . . 3 



III. The Sums of the Series of the Reciprocals of the Prime Numbers and 



of their Powers. By C. W. Meeeieield, F.R.S. . . . . 4 



IY. Further Note on the Minute Anatomy of the Thymus. By Heebeet 



Wat^ey, M.A., M.D. Cantab. .11 



V. Experimental Researches on the Propagation of Heat by Conduction 

 in Bone, Brain-tissue, and Skin. By J. S. Loiibaed, M.D., formerly 

 Assistant Professor of Physiology in Harvard University . . .11 



VI. On the Comparative Structure of the Brain in Rodents. By W. Beyan 

 Lewis, L.R.C.P. (Lond.), Senior Assistant Medical Officer to the 

 West Riding Asylum, Wakefield 15 



VII. On the Production of Transient Electric Currents in Iron and Steel 

 Conductors by Twisting them when Magnetised or by Magnetising 

 them when Twisted. By J. A. Ewixg, B.Sc, F.R.S. E., Professor of 

 Mechanical Engineering in the University of Tokio, Japan . . 21 



For continuation of Contents see 2>rd and 4th pages of Wrapper. 



Price Four Shillings. 



