PEOCEEDINGS OF 



THE ROYAL SOCIETY. 



VOL. LIX. 



No. 353. 



CONTENTS. 



November 21, 1895. 



PAGE 



I. On the G-ases obtained from the Mineral Eliasite. By J. Noeman 



Lockyee, C.B., F.R.S 1 



II. On the new G-ases obtained from Uraninite. (Sixth Note.) By J. 



Nokman Lockyee, C.B., F.R.S 4 



III. On the Variable Stars of the d Cephei Class. By J. Noeman Lockyee, 



C.B., F.R.S. [Title only'] 9 



IV. Microscopic and Systematic Study of Madreporarian Types of Corals. 



By Maeia M. Ogilyie, D.Sc 9 



V. On the Calibration of the Capillary Electrometer. By G-eoeg-e J. 



Buech, M.A 18 



VI. An Experimental Investigation of the Laws of Attrition. By F. T. 



Teouton, D Sc 25 



VII. Experiments on Fluid Viscosity. By A. Mallock .... 38 



List of Presents 39 



I. The Expansion of Argon and of Helium as compared with that of Air 

 and Hydrogen. By J. P. Ktjenen, Ph.D., Professor of Physics in 

 University College, Dundee, and W. W. Randall, Ph.D., Lecturer 

 in Johns Hopkins University, Baltimore, U.S. A 60 



II. On the Percentage of Argon in atmospheric and in respired Air. By 

 Alexajtdeb Kellas, B.Sc, Assistant in the Chemical Department 

 of University College, London 66- 



November 28, 1895. 



For continuation of Contents see 2nd page of Wrapper. 



Price Three Shillings and Sixpence. 

 January 15, 1896. 



