VI 
Contents. 
10. A New Method of Starting Mercury Vapour Apparatus. By John S. Anderson, 
M.A., B.Sc., 1851 Exhibition Science Scholar (Glasgow) ; and George B. 
Burnside, Mechanical Assistant to the Professor of Natural Philosophy in the 
University of Glasgow. Communicated by Professor A. Gray, F.R.S. (With 
One Plate.) Issued separately April 11, 1913, . 
11. On the Application of Manley’s Differential Densimeter to the Study of Sea- 
waters on board Ship. By Norman Phillips Campbell, B.A. Oxon. Com- 
municated by Sir John Murray, K.C.B. Issued separately April 19, 1913, 
12. The Absorption of Light by Inorganic Salts. No. IX. : Solutions of Copper, 
Nickel, and Cobalt Salts in Alcohol and in Acetone. By R. A. Houstoun, 
M.A., Ph.D., B.Sc., and A. H. Gray, M.A., B.Sc., Research Student in the 
University of Glasgow. Issued separately April 22, 1913, 
13. The Absorption of Light by Inorganic Salts. No. X. By R. A. Houstoun, 
M.A., Ph.D., D.Sc., and Chas. Cochrane, Thomson Experimental Scholar in 
the University of Glasgow. Issued separately April 22, 1913, 
14. The Absorption of Light by Inorganic Salts. No. XI. : Conclusion. By R. A. 
Houstoun, M.A., Ph.D., D.Sc. Issued separately April 22, 1913, 
15. On the Occurrence of Functional Teeth in the Upper Jaw of the Sperm Whale. 
By James Ritchie, M.A., D.Sc., Royal Scottish Museum ; and A. J. H. 
Edwards, National Museum of Antiquities. Communicated by Sir Wm. 
Turner. (With One Plate.) Issued separately April 22, 1913, . 
16. On the Electron Theory of Thermo-electricity. By John M‘Whan, M.A., Ph.D., 
Assistant to the Professor of Mathematics in the University of Glasgow. 
Communicated by Professor A. Gray, F.R.S. Issued separately April 22, 
1913, .......... 
17. On a Fuller Test of the Law of Torsional Oscillation. By James B. Ritchie, 
B.Sc., Carnegie Research Scholar in Physics, University College, Dundee. 
Communicated by Professor W. Peddie. Issued separately April 23, 1913, 
18. On a Continued Investigation of the Application of the Law of Torsional 
Oscillation to Various Metals and Alloys. By James B. Ritchie, B.Sc., 
Carnegie Research Scholar in Physics, University College, Dundee. Com- 
municated by Professor W. Peddie. Issued separately May 19, 1913, . 
19. Note on a Comparison of Records of Atmospheric Electric Potential at Two 
Stations in Edinburgh. By G. A. Carse and G. Shearer, Edinburgh Uni- 
versity ; and H. Jameson, Royal Observatory, Edinburgh. Issued separately 
May 19, 1913, . . . . . . . . 
20. Changes of Electrical Resistance accompanying Longitudinal and Transverse 
Magnetizations in Nickel. By Professor C. G. Knott, D.Sc. Issued separ- 
ately May 19, 1913, . . , . . . . 
21. On the Deviation of the Torsional Oscillations of Metallic Wires from Iso- 
chronism. By Professor W. Peddie. Issued separately June 6, 1913, 
22. The Effect of Thermal Treatment and the Effect of Longitudinal Strain in 
inducing a Sensitive State in certain Magnetic Materials. By Margaret B. 
Moir, M.A., B.Sc., Carnegie Research Fellow in the University of Glasgow. 
Communicated by Professor A. Gray, F.R.S. Issued separately July 4, 1913, . 
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