ix 



December- 20, 1877. 



Notes on Supersaturated Saline Solutions. By Charles Tornlinson, F.E.S. 523 



Page 



59S 



Notes on Physical Geology. — No. III. On a new Method of finding Limits 

 to the Duration of certain Geological Periods. By the Rev. Samuel 

 Haughton, M.D. Dubl., D.C.L. Oxon., F.R.S., Professor of Geology in the 

 University of Dublin ' 534 



On certain Movements of Radiometers. By G. G. Stokes, M.A., Sec. R.S. 546 



List of Presents 555 



Obituary Notices of Fellows deceased : — 



Dr. Sibson ..... . i 



J. B. A. L. L. Elie de Beaumont iv 



Index 563 



ILLUSTRATIONS. 



Plates 1 and 2 illustrating Mr. Bevan Lewis's Paper on the Relationships of 

 the Nerve-cells of the Cortex to the Lymphatic System of the Brain. 



ERRATUM IN VOL. XXV 



Page 508, equation (21.), in the denominator of the integral for cos 8 

 read cos tan 6. 



ERRATA IN VOL. XXYI. 



Page 53, line 4 from bottom, for foot read mile. 

 „ 357, line 4, delete the hyphen in material-like. 



„ „ footnote, line 5 from bottom, for Helvingrove read Kelvingrove. 



