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Contents of PROCEEDINGS, No. A 627. March, ioi5. 



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Page 



THE ANALYSIS OF GASES AFTER PASSAGE OF ELECTRIC DISCHARGE. 



By A. C. G. Egerton .. 180 



AN ELECTRICALLY HEATED FULL RADIATOR. By H. B. Keene, D.Sc. .. 190 

 ON THE SPECTRA OF ORDINARY LEAD AND LEAD OF RADIOACTIVE 



ORIGIN. By Thomas R. Merton, B.Sc. (Oxon.) 198 



ON THE VISCOSITY OF THE VAPOUR OF IODINE. By A. O. Rankine, D.Sc. 201 

 A NEW TYPE OF SERIES IN THE BAND SPECTRUM ASSOCIATED 



WITH HELIUM. By A. Fowler, F.R.S 208 



THE INFLUENCE OF MOLECULAR CONSTITUTION AND TEMPERA- 

 TURE ON MAGNETIC SUSCEPTIBILITY. PART III.— ON THE MOLECULAR FIELD IN 

 DIAMAGNETIC SUBSTANCES. By A. E. Oxley, M.A., M.Sc. (Abstract) 216 



THE TRANSMISSION OF ELECTRIC WAVES OVER THE SURFACE OF 



THE EARTH. By A. E. H. Love, F.R.S. (Abstract) 219 



