VI 
Contents. 
11. An Investigation into the Effects of Seasonal Changes on Body Temperature. By 
Sutherland Simpson, M.D., D.Sc. (From the Physiological Laboratory of the 
Medical College, and the Department of Poultry Husbandry, New York State 
College of Agriculture, Cornell University, Ithaca, N.Y., U.S.A.) Issued 
separately April 29, 1912, 
12. The Theory of Circulants from 1861 to 1880. By Thomas Muir, LL.D. Issued 
separately May 17, 1912, ........ 
13. “ On the Singular Solutions of Partial Differential Equations of the First Order.” 
By H. Levy, M.A., B.Sc., Carnegie Scholar. Communicated by D. Gibb, M.A., 
B.Sc. Issued separately May 17, 1912, . . . 
14. On General Dynamics: — I. Hamilton’s Partial Differential Equations and the 
Determination of their Complete Integrals. By Professor A. Gray, F.R.S. 
Issued separately May 17, 1912, . 
15. The Fata Morgana. By Professor F. A. Forel, Morges, Switzerland. Issued 
separately May 25, 1912, . 
16. The Sun as a Fog Producer. By Dr John Aitken, F.R.S. Issued separately 
July 1, 1912, ......... 
17. The Molecular Theory of Magnetism in Solids. By Professor W. Peddie. Issued 
separately July 11, 1912, ....... 
18. On the Torsional Oscillations of Magnesium Wire. By G. P. Seaman. Com- 
municated by Professor W. Peddie. Issued separately July 11, 1912, . 
19. On the use of Antiseptics in Autolysis of Animal and Vegetable Matter. By 
Dorothy Court, B.Sc., Carnegie Research Fellow. Communicated by Dr E. 
Westergaard. Issued separately July 20, 1912, ..... 
20. Report on Rock Specimens dredged by the “Michael Sars” in 1910, by H.M.S. 
“Triton” in 1882, and by H.M.S. “Knight Errant” in 1880. By Dr B. N. 
Peach, F.R.S. (With Folding Map, Text Figs, and Nine Plates.) Issued 
separately August 2, 1912, 
21. Transverse Induction Changes in Demagnetised and Partially Demagnetised Iron 
in relation to the Molecular Theory of Magnetism. By James Russell. Issued 
separately August 9, 1912, 
22. Preliminary Note on the Effect of Vibration upon the Structure of Alloys. By 
G. H. Gulliver, B.Sc., A.M.I.Mech.E., Lecturer in Engineering in the Uni- 
versity of Edinburgh. (With Two Plates.) Issued separately August 9, 1912, 
23. On a Continuous-current Motor- Gyrostat with accessories for Demonstrating the 
Properties and Practical Applications of the Gyrostat. By James G. Gray, 
D.Sc., Lecturer on Physics in the University of Glasgow ; and George Burnside, 
Mechanical Assistant to the Professor of Natural Philosophy in the University 
of Glasgow. Issued separately August 19, 1912, 
24. The Railway Transition Curve. Bv E. M. Horsbursh. Issued separately 
August 30, 1912, ......... 
25. The Elastic Strength of Flat Plates : An Experimental Research. By W. J. 
Crawford, B.Sc., Mechanical Engineering Department, Municipal Technical 
Institute, Belfast. Communicated by Professor C. G. Knott (Secretary). 
Issued separately September 9, 1912, ...... 
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