xiv REPORT 1895. 



TUESDAY, .SEPTEMBER 17. 



Page 



1. On the Electrification and Diselectrification of Air and other Gases. By 

 Lord Kelvin, Magnus Maclean, and Alexander Galt 630 



2. Do Vertical (Earth-Air) Electric Currents exist in the United King- 

 dom ? By A. W. RiJCKER, F.R.S 633 



3. *0n the Equation connecting the Potential Difference, Current, and 

 Length of the Electric Arc. By Mrs. Atrton 634 



4. *0n the hack E.M.F and True Eesistance of tlie Arc. By Professor 



W. E. Atrton, F.R.S., and T. Mather 634 



5. Note on the Electrolysis of Iron Salts. By W. M. Hicks, F.R.S., and 



L. T. O'Shea '. 634 



6. *0n a Magnetic Field Tester. By Professor W. E. Atrton, F.R.S., 

 and T. Mather 635 



7. On the Velocity of Light in Rarefied Gases through which an Electrical 



Discharge is passing. By Edwin Edsee, A.H.C.S., and Stdnet G. 

 Starling, A.R.C.S 635 



8. On the Hysteresis of Iron in an Alternating Magnetic Field. Bv 



Francis G. Bailt, M.A ".. 636 



WEDNESDAY, SEPTEMBER 18. 



1. On the Change of Molecular Refraction in Salts or Acids dissolved in 

 Water. By Dr. .T. II. Gladstone, F.R.S., and Walter Hibbert, F.I.C. 637 



2. Report on Electrical Standards 637 



3. On the Choice of Magnetic Units. By Professor Silvanus P. Thomp- 



son, F.R.S ■ 637 



4. *0n some New Methods and Apparatus for the Delineation of Alternate 

 Current Wave Forms. By J. M. Bark, W. B. Bfrnie, and Charles 

 RODGEES 638 



5. *0n Alternating Wave Tracers. By Professor W. E. Atrton, F.R.S., 

 andT. Mather 638 



6. *0n the Relation between Speed and Voltage in Electric Motors. By 

 Professor W. E. Atrton, F.R.S., and T. Mather .". 638 



7. *0n some recent Improvements in Measurements of High Temperatures. 

 Illustrated hy Apparatus recently acquired hy the Kew Observatory 

 Committee. By E. H. Griffith.s, F.R.S 638 



Section B. -CHEMISTRY. 



THURSDAY SEPTEMBER 12. 



Address by Professor R. Meldola, F.R.S., For.Sec.C.S., President of the 

 Section 639 



1. A New View of the Genesis of Dalton's Atomic Theory, derived from 



Original Manuscripts. By Sir H. E. Roscoe, F.R.S., and Arthur 

 Harden '. 656 



2. Report on the Teaching of Science in Elementary Schools 656 



3. The Action of Nitric Oxide on some Metallic Salts. By H. A. Audbn, 



B.Sc, and G. J. Fowler, MSc 656 



