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Contents. 
PAGE 
38. The Absorption of Light by Inorganic Salts. No. III. : Aqueous Solutions of 
Nickel Salts in the Visible Spectrum and the Infra-Red. By R. A. 
Houstoun, M.A., Ph.D., D.Sc., Lecturer on Physical Optics in the University 
of Glasgow. Communicated by Professor A. Gray, F.R.S. Issued separately 
July 8, 1911, ......... 538 
39. The Absorption of Light by Inorganic Salts. No. IV. : Aqueous Solutions of 
Cobalt and Nickel Salts in the Ultra-Violet. By R. A. Houstoun, M.A., 
Ph.D., D.Sc., Lecturer in Physical Optics, and John S. Anderson, M.A., B.Sc., 
Carnegie Scholar in the University of Glasgow. Communicated by Professor 
A. Gray, F.R.S. Issued separately July 8, 1911, .... 547 
40. On Fourier’s Repeated Integral. By W. H. Young, Sc.D., F.R.S. Communicated 
by Professor G. A. Gibson. Issued separately July 11, 1911, . . . 559 
41. On Sommerfeld’s Form of Fourier’s Repeated Integrals. By W. H. Young, 
Sc.D., F.R.S. Communicated by Professor G. A. Gibson. Issued separately 
July 26, 1911, . . . . . . . . \ 587 
42. The Sectional Anatomy of the Head of the Australian Aboriginal : A Contribu- 
tion to the Subject of Racial Anatomy. By Richard J. A. Berry, M.D. 
(Edin. et Melb.), F.R.C.S. (Edin.), Professor of Anatomy in the University 
of Melbourne. (With Fourteen Plates.) Issued separately July 27, 1911, . 604 
43. The Relation of the Mono-Molecular Reaction to Life Processes and to Im- 
munity. By John Brownlee, M.D., D.Sc. Issued separately September 28, 
1911, 627 
44. Experimental Researches on the Specific Gravity and the Displacement of some 
Saline Solutions. By J. Y. Buchanan, F.R.S. (Abstract.) Issued separately 
October 24, 1911, . . . . . . . . 635 
45. The Rate of Multiplication of Micro-organisms : A Mathematical Study. By 
A. G. M‘Kendrick, Capt. I.M.S., and M. Kesavi Pai, M.D. Communicated 
by Professor M‘Kendrick. Issued separately October 24, 1911, . . 649 
46. On Photometric Paddle-Wheels. By James Robert Milne, D.Sc. Issued 
separately October 24, 1911,. . . . . . 656 
Obituary Notices, ......... 684 
Appendix — 
Proceedings of the Statutory General Meeting, 1910, .... 699 
Proceedings of the Ordinary Meetings, Session 1910-1911, . . . 700 
Laws of the Society, . . . . . . . .707 
The Keith, Makdougall-Brisbane, Neill, and Gunning Victoria Jubilee Prizes, . 712 
Awards of the Keith, Makdougall-Brisbane, Neill, and Gunning Victoria Jubilee 
Prizes, .......... 714 
The Council of the Society at October 1911, ..... 719 
Alphabetical List of the Ordinary Fellows of the Society at November 1911, . 720 
List of Honorary Fellows of the Society at November 1911, . . . 736 
List of Ordinary Fellows of the Society elected during Session 1910-1911, . 737 
List of Honorary Fellows of the Society elected during Session 1910-1911, . 738 
Ordinary Fellows deceased and resigned during Session 1910-1911, . . 738 
Accounts of the Society, Session 1910-1911, ..... 739 
List of Library Exchanges, Presentations, etc., at November 1911. I., II., 745, 768 
List of Periodicals, etc., purchased by the Society. III., . . . 774 
Index, ........... 778 
