CONTENTS {continued). 



January 20, 1881. 



PAGE 



J. Oti Grravimeters, with special reference to the Torsion- Graviineter de- 

 signed by the late J. Allan Broun, F.R.S. By Major J. Heeschel, 

 R.E., F.R.S., Deputy-Superintendent of the G-reat Trigonometrical 

 . Survey of India 317 



Experimental Researches into Electric Distribution as manifested by 

 that of the Eadicles of Electrolytes. By Alfeed Teibe, F.I.C., 

 Lecturer on Chemistry in Duhvich College ...... 320 



III. On the Tidal Eriction of a Planet attended by several Satelhtes, and 



on the Evolution of the Solar System. By Gr. H. Dabwijt, F.R.S. . 322 



IT. On the Eemale Organs and Placentation of the Racoon (JProci/on Jotor). 

 By M. "Watson, M.D., Professor of Anatomy, Owens College, 

 Manchester 325 



Y. Eurther Note on the Minute Anatomy of the Thymus. By Heebeet 



Watney, M.A., M.D. Cantab. . \ . . . . .326 



January 27, 1881. 



I. The Refraction Equivalents of Carbon. Hydrogen, Oxygen, and Ni- 

 trogen in Organic Compounds. By J. H. Gladstone, Ph.D., F.R.S. 327 



II. On certain Definite Integrals. No. 8. By W. H. L. Russell, F.R.S. . 330 



III. Polacanthus Foxii, a large undescribed Dinosaur from the Wealden 



Eormation in the Isle of Wight. By J. W. Httlee, F.R.S. . . 336 



IY. On Harmonic Ratios in the Spectra of Gases. By Aethfe Schxsteb, 



Ph.D., F.R.S \ . . . .337 



Y. Dielectric Capacity of Liquids. By J. Hopeunsox, F.R.S. . . . 347 



YI. Note on the Occurrence of Ganglion Cells in the Anterior Roots of the 



Cat's Spinal Nerves. By E. A. Schafee, F.R.S. . .348 



YII. On the Iron Lines widened in Solar Spots. By J". Nobman Lockyee, 



F.R.S . ... ... 3£8£ 



Lists of Presents ' . . 350 



Obituary Notice : — 



John Stenhouse XX 



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