PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



vol. xxyiii. /*T7brI^Nq. 192. 



\ ?9 



contents. ■ \ /, £ 



NS i 



January 9, 1879. 



PAGE 



I. Researches on the Absorption of the Ultra- Yiolet Rays of the Spectrum 

 by Organic Substances. By W. JST. Haetley, F. Inst. Chem., 

 F.R.S.E., F.C.S., Demonstrator of Chemistry, King's College, London, 

 and A. K. Huntington, F.Inst.Chem., A.R.Sc. Mines, F.C.S. . . 233 



II. On the Electromagnetic Theory of the Reflection and Refraction of 

 Light. By Geoege Feancis Fitzgeeald, M.A., Fellow of Trinity 

 College, Dublin 236 



III. On Dry Fog. By E. Feankland, D.C.L., F.R.S., Professor of Che- 

 mistry in the Royal School of Mines 238 



TV. Note on the Inequalities of the Diurnal Range of the Declination Magnet 

 as recorded at the Kew Observatory. By Balfoue Stewart, F.R.S., 

 Professor of Natural Philosophy in Owens College, Manchester, and 

 William Dodgson 241 



V. Some Experiments on Metallic Reflexion. By Sir J ohn Conrot, Bart., 



M.A 242 



January 16, 1879. 



I. On some Points connected with the Anatomy of the Skin. By Geoege 



Thin, M.D. (Plates 2, 3) 251 



II. On Hyaline Cartilage and deceptive appearances produced by Reagents, 

 as observed in the examination of a Cartilaginous Tumour of the 

 Lower Jaw. By Geoege Thin, M.D 257 



III. Volumetric Estimation of Sugar by an Ammoniated Cupric Test giving 



Reduction without Precipitation. By F. W. Payy, M.D., F.R.S. . 260 



IV. On the Effect of Strong Induction-Currents upon the Structure of the 



Spinal Cord. By William Millee Oed, M.D., F.L.S., Fellow of the 

 Royal College of Physicians, Physician to St. Thomas's Hospital . 265 



V. Concluding Observations on the Locomotor System of Medusa?. By 



Geoege J. Romanes, M.A., F.L.S 266 



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