CONTENTS. 



VOL. LIX. 



-H*~- 



No. 353.— November 21, 1895. 



Page 



On the Gases obtained from the Mineral Eliasite. By J. Norman 

 Lockyer, C.B., F.E.S 1 



On the new Gases obtained from Uraninite. Sixth Note. By J. Norman 

 , Lockyer, C.B., F.E.S 4 



On the Variable Stars of the 8 Cephei Class. By J. Norman Lockyer, 

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



Microscopic and Systematic Study of Madreporarian Types of Corals. 

 By Maria M. Ogilvie, D.Sc 9 



On the Calibration of the Capillary Electrometer. By George J. 

 Burch, M.A, 18 



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

 Trouton, D.Sc 25 



Experiments on Fluid Viscosity. By A. Mai lock 38 



List of Presents 39 



November 28, 1895. 



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

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

 University College, Dundee, and W. W. Eandall, Ph.D., Lecturer in 

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



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

 Alexander Kellas, B.Sc, Assistant in the Chemical Department of 

 University College, London 66 



Examination of Gases from certain Mineral "Waters. By Alexander 

 Kellas, B.Sc, and William Eamsay, Ph.D., F.E.S 68 



Contributions to the Mathematical Theory of Evolution. III. Eegres- 

 sion, Heredity, and Panmixia. By Karl Pearson, University College, 

 London 69 



On the Granular Leucocytes. By G. Lovell Gulland, M.A., B.Sc, 

 M.D., F.E.C.P.E VI 



