iv REPORT — 1898. 



REPORTS ON THE STATE OF SCIENCE. 



[ Jm asterisk * indicates that tlie title only is given. Tlie mark f indicates tlve same, 

 hit a reference is given to tJte joxtmal or nervspa/per where it is published in extenso.] 



Page 

 Correspouding Societies Committee. — Ifeport of the Committee, consisting of 

 Professor R. Meldola (Chairman), Mr. T. V. Holjces (Secretary), Mr. 

 Francis Galton, Sir Douglas Galton, Dr. J. G. Gakson, Sir J. Evans, 

 Mr. J. IIoPKiNSON, Mr. \V. Whitaker, Mr. G. J. Symons, Professor T. G. 

 Bonnet, Sir Cuthbekt E. Peek, Mr. Horace T. Brown, Rev. J. O, 

 Bevan, and Professor W. AV. Watts 41 



Meteorological Observatory, Montreal. — Report of the Committee for the 

 Establishment of a Meteorological Observatory on the Top of Mount Royal, 

 Montreal, consisting of Professor H. L. Callendar (Chairman), Professor 

 C, H. McLeod (Secretary), Professor F. Adams, and Mr. R. F. Stitpart.... 79 



Comparing and Reducing Magnetic Observations. — Report of the Committee, 

 consisting of Professor W. G. Adams (Chairman), Dr. C. Chree (Secretary), 

 Lord Kelvin, Professor G. H. Darwin, Professor G. Chrystal, Professor 

 A. Schuster, Captain E. W. Creak, the Astronomer Royal, Mr. William 

 Ellis, and Professor A. W. Rucker 80 



I. Magnetic Results at Greenwich and Kew Discussed and Compared, 

 1889 to 1896. By William Ellis, F.R.S 80 



II. Account of the Late Professor John Couch Adam's Determination 

 of the Gaussian Magnetic Constants. By Professor W. G. 

 Adams, F.R.S 109 



Stream-line Motion of a Viscous Film. 



I. Experimental Investigation of the Motion of a Thin Film of 



Viscous Fluid. By Professor H. S. Hele-Shaw, LL.D 136 



II. Mathematical Proof of the Identity of the Stream Lines obtained 



by Means of a Viscous Film with those of a Perfect Fluid 

 moving in Two Dimensions. By Sir G. G. Stokes, F.R.S 143 



Tables of Certain Mathematical Functions. — Report of the Committee, con- 

 sisting of Lord Kelvin (Chairman), Lieut.-Colonel Allan Cunningham 

 (Secretary), Professor B. Price, Dr. J. W. L. Glaishek, Professor A. G. 

 Greenhill, Professor W. M. Hicks, Major P. A. MacMahon, and 

 Professor A. Lodge, appointed for calculating Tables of certain Mathematical 

 Functions, and, if necessary, for taking steps to carry out the Calculations, 

 and to publish the results in an accessible form 145 



Experiments for Improving the Construction of Practical Standards for Elec- 

 trical Measurements. — Report of the Committee, consisting of Professor 

 G. Carey Foster (Chairman), Mr. R. T. Glazebrook (Secretary), Lord 

 Kelvin, Professors W. E. Ayrton, J. Perry, V/. G. Adams, and Oliver 

 J. Lodge, Lord Rayleigh, Dr. A. Muirhead, Mr. W. H. Preece, Pro- 

 fessors J. D. Everett and A. Schuster, Dr. J. A. Fleming, Professors 



