PKOCEEDINGS OF 

 THE KOYAL SOCIETY. 



VOL. XXIX. 



No. 197. 



Annual Meeting for the Election of Fellows 



CONTENTS. 



June 19, 1879. 



June 12, 1879. 



I. On the Existence of Liebreich's Protagon in the Brain. By~Pro- 

 fessor Aethue G-amgee, M.D., F.E.S., Owens College, Manchester, 

 and Eenst Blankenhoejst, Ph.D 151 



II. Kote on the Existence of a Milk-curdling Ferment in the Pancreas. 

 By William Eobeets, M.D., F.E.S. , Physician to the Manchester 

 Eoyal Infirmary . . .157 



III. On some Recent Improvements made in the Mountings of the 

 Telescopes at Birr Castle. By the Eael of Eosse, D.C.L., LL.D., 

 F.R.S. ... . .157 



IT. The Measurement of the Eatio of Lateral Contraction to Longitudinal 



Extension in a Body under Strain. By A. Mallock: . . . 1 57 



V. The Motion of Two Spheres in a Fluid. By W. M. Hicks, M.A., 



St. John's College, Cambridge 162 



TI. Microscopical Eesearches in High Power Definition. By Gr. W. 



Eotstox-Pigott, M.A., M.D. Cantab., F.E.S. . .164 



VII. Note on Spectroscopic Papers. By Gr. D. Liyeing, M.A., Professor 

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

 University of Cambridge . . . . . . . . 166 



VIII. The Determination of the Secular Effects of Tidal Friction by a 

 Graphical Method. By Gr. H. Daewin, M.A., formerly Fellow of 

 Trinity College, Cambridge ........ 168 



IX. Eesearches in Chemical Equivalence. Part III. INickelous and 

 Cobaltous Sulphates. By Edmund J. Mills, D.Sc, F.E.S. , and 

 J. J. Smith 181 



X. On the Formation of Hydrocyanic . Acid in the Electric Arc. By 

 James Dewae, M.A., F.E.S., Professor of Chemistry to the Eoyal 

 Institution 188 



XL On the Production of Coloured Spectra by Light. By Captain 



Abkey, E.E., F.E.S. 190 



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