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Report of Absolute Magnetic Observations at the V alencia Observa- 



tory (Cahirciveen, co. Kerry), 1899, 1900, and 1901. By J. E. Cullum. 

 Communicated by the Earl of Rosse, F.R.S 246 



Microscopic Effects of Stress on Platinum. By Thomas Andrews, 

 F.R.S., F.C.S., and Charles Reginald Andrews. (Plate 4) 250 



A Note on the Recrystallisation of Platinum. By Walter Rosenhain, 

 B.A. (Cantab.), B.C.E. (Melbourne). Communicated by Professor 

 Ewing, F.R.S 252 



On some Phenomena affecting the Transmission of Electric Waves 

 over the Surface of the Sea and Earth. By Captain H. B. Jackson, 

 R.N., F.R.S 254 



No. 463. 



On Electromotive Wave accompanying Mechanical Disturbance in 

 Metals in Contact with Electrolyte. By Jagadis Chunder Bose, 

 M.A., D.Sc, Prof. Presidencv College, Calcutta. Communicated by 

 Professor Reinold, F.R.S 273 



On the Effect of a Longitudinal Magnetic Field on the Internal 

 Yiscosity of Wires of Nickel and Iron, as shown by Change of the 

 Rate of Subsidence of Torsional Oscillations. By Professor Andrew 

 Gray, F.R.S., and Alexander Wood, B.Sc, Houlds worth Research 



Student in the University of Glasgow 294 



The Spectra of Potassium, Rubidium, and Caesium, and their Mutual 

 Relations. By Hugh Ramage, B.A., St. John's College, Cambridge. 

 Communicated by Professor G. D. Liveing, F.R.S 303 



Contributions to the Study of Flicker. Paper II. By T. C. Porter, 

 M.A., Eton College. Communicated by Lord Rayleigh, F.R.S 313 



The Refractive Indices of Fluorite, Quartz, and Calcite. By J. 

 William Gifford. Communicated by Silvanus P. Thompson, F.R.S. 329 



Note on a Magnetic Detector of Electric Waves, which can be employed 

 as a Receiver for Space Telegraphy. By G. Marconi, M.I.E.E. 

 Communicated by Dr. J. A. Fleming, F.R.S 341 



A Note on the Effect of Daylight upon the Propagation of Electro- 

 magnetic Impulses over Long Distances. By G. Marconi, M.I.E.E. 

 Communicated by Dr. J. A. Fleming, F.R.S 344 



No. 464. 



A Portable Telemeter, or Range Finder. By George Forbes, F.R.S 347 



The Dissipation of Energy by Electric Currents induced in an lion 

 Cylinder when rotated in a Magnetic Field. By Ernest Wilson, 

 Professor of Electrical Engineering, King's College, London. Com- 

 municated by Sir W. H. Preece, F.R.S 359 



On Skin Currents. — Part III. The Human Skin. By Augustus D. 

 Waller M.D., F.R.$ 374 



