xii REPORT — 1895. 



TRANSACTIONS OF THE SECTIONS. 



Section A.— MATHEMATICAL AND PHYSICAL SCIENCE. 



THURSDAY, SEPTEMBER 12. 



Page 

 Address by Professor W. M. Hicks, M.A., D.Sc, F.E.S., President of the 

 Section 595 



1. On the Reicbsanstalt, Chariot tenburg, Berlin. By Sir Douglas Galton, 

 K.O.B G06 



2. On the Teaching of Geometrical Drawing in Schools. Bv 0. Henrtci, 

 F.E.S " G08 



3. *Interim Report on Cosmic Dust GOO 



4. Report on Underground Temperature 609 



5. Report on the Sizes of the Pages of Periodicals 009 



6. Report on the Reduction of Magnetic Observation 609 



7. Report on the Comparison of Magnetic Instruments 600 



FRIDAY, SEPTEMBER 13. 

 A joint Meeting with Section B. 



1. The Refraction and Viscosity of Argon and Helium. By Lord Ratleigh, 



Sec. R.S ; 609 



2. On Specific Refraction and the Periodic Law, with reference to Argon and 

 other Elements. By Dr. J. H. Gladstone, F.R.S GOO 



3. *A Discussion ' On the Evidence to be Gathered as to the Simple or Com- 

 pound character of a Gas, from the Constitution of its Spectrum.' Opened 



by Professor A. Schtjstee and Lord Rayleigh GIO 



4. The Constituents of Cleveite Gas. By C. Runge and F. Paschen 610 



5. On Motions competent to produce Groups of Lines which have been 

 observed in Actual Spectra. By G. Johnstone Signet, M.A., D.Sc, 

 F.R.S 610 



SATURDAY, SEPTEMBER 14. 

 I. Mathematics. 



1. *0n the Translational and Vibrational Energies of Vibrators after Impacts 



on fixed Walls. By Lord Kelvin, Pres. R.S 612 



2. On Bicyclic Vortex Aggregates. By Professor W. M. Hicks, F.R.S 612 



3. On Hill's Spherical Vortex. .By Professor AV. M. Hicks, F.R.S 612 



