V 



No. 491.— March 23, 1904. 



Page 



The Electromotive Phenomena in Mammalian Non-medu Hated Nerve. 

 By N. H. Alcock, M.D. Communicated by A. D. Waller, M.D.. 

 F.E.S 166 



Note on the Formation of Solids at Low Temperatures, particularly 

 with regard to Solid Hydrogen. By Morris W. Travers, D.Sc, Pro- 

 fessor of Chemistry at University College, Bristol. Communicated 

 by Sir W. Kamsay, K.C.B., F.E.S 181 



A Contribution to the Study of the Action of Indian Cobra Poison. 

 By Captain E. H. Elliot, M.B., B.S., etc., of the Indian Medical 

 Service. Communicated by Professor Sir Thomas E. Fraser, F.E.S. 

 (Abstract) 183 



A Study of the Badio- activity of certain Minerals and Mineral Waters. 

 By Hon. E. J. Strutt, Fellow of Trinity College, Cambridge. Com- 

 municated by Lord Eayleigh, 0,M., F.E.S 191 



An Inquiry into the Nature of the Eelationship between Sunspot 

 Frequency and Terrestrial Magnetism. Bv C. Chree, Sc.D., LL.D., 

 F.E.S. (Abstract) \ 198 



The Optical Properties of Vitreous Silica. By J. W. Gifford and 

 W. A. Shenstone, F.E.S 201 



Atmospherical Badio-activity in High Latitudes. By George C. 

 Simpson, B.Sc, 1851 Exhibition Scholar, Owens College, Manchester. 

 Communicated by Arthur Schuster, F.E.S , 209 



No. 492.— April 9, 1904. 



On the High Temperature Standards of the National Physical Labora- 

 tory : an Account of a Comparison of Platinum Thermometers and 

 Thermo-junctions with the Gas Thermometer. By J. A. Harker, 

 D.Sc, Fellow of Owens College, Manchester, Assistant at the 

 National Physical Laboratory. Commanicatecl by E. T. Glazebrook, 

 F.E.S. (Abstract) 217 



The Spectra of Antarian Stars in Eelation to the Fluted Spectrum of 

 Titanium. By A. Fowler, A.E.C.S., F.E.A.S., Assistant Professor of 

 Physics at the Eoyal College of Science, South Kensington. Com- 

 municated by Professor H. L. Callendar, F.E.S. (Plate 6) 219 



The Specific Heats of Metals and the Eelation of Specific Heat to 

 Atomic Weight.— Part III. By W. A. Tilden, D.Sc, F.E.S., Pro- 

 fessor of Chemistry in the Eoyal College of Science, London. 

 (Abstract) .". 226 



Further Eesearches on the Temperature Classification of Stars. By 

 Sir Norman Lockyer, K.C.B., LL.D., F.E.S. (Plates 7—9) 227 



On the Construction of Some Mercury Standards of Eesistance, with a 

 Determination of the Temperature Coefficient of Eesistance of 

 Mercury. By F. E. Smith, A.E.C.Sc, Assistant at the National 

 Physical Laboratory. Communicated by R. T. Glazebrook, F.E.S. 

 (Abstract) , 239 



