PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



VOL. XXXV. 



No. 225. 



CONTENTS. 



April 5, 1883. 



I. On a hitherto unobserved Eesemblance between Carbonic Acid and 



Bisulphide of Carbon. By John Tyndall, F.B.S 129 



II. On Electrical Motions in a Spherical Conductor. By Hoeace L amb, 

 M.A., formerly Fellow of Trinity College, Cambridge, Professor of 

 Mathematics in the University of Adelaide. . . . . 130 



III. Observations on the Colouring-matters of the so-called Bile of Inverte- 

 brates, and those of the Bile of Vertebrates, and on some unusual 

 Urine Pigments, &c. By Chaeles A. MacMtjnn, B.A., M.D. . . 132 



I. The Principal Cause of the Large Errors at present existing between the 

 Positions of the Moon deduced from Hansen's Tables and Observation : 

 and the Cause of an Apparent Increase in the Secular Acceleration in 

 the Moon's Mean Motion required by Hansen's Tables, or of an 

 Apparent Change in the Time of the Earth's Eotation. By E. J. 

 Stone, F.E.S., Director of the Eadcliffe Observatory, Oxford. . . 135 



II. On the Atomic Weight of Grlucinum (Beryllium) . By T. S. Htjmpidge, 



III. On a New Crinoid from the Southern Sea . By P. Heebeet Caepentee, 



M.A., Assistant Master at Eton College ...... 138 



IV. On the Structure and Functions of the Eyes of Arthropoda. By B. 



Thompson Lowne, F.E.C.S., Lecturer on Physiology in the Mid- 

 dlesex Hospital Medical School, Examiner in Physiology in the Eoyal 

 College of Surgeons, formerly Arris and Qale Lecturer on Anatomy 

 and Physiology in the Eoyal College of Surgeons. .... 140 



V. Introductory Note on Communications to be presented on the Physiology 

 of the Carbohydrates in the Animal System. By F. W. Pavy, M.D., 



April 12, 1883. 



Ph.D., B.Sc. 



137 



F.R.S, 



145 



For continuation of Contents see 4<th page of Wrapper. 



f rice Four Shillings and Sixpence. 



