IV 
CONTENTS. 
NO. PA.GB 
XVIII. The Trachytic and Allied Rocks of the Clyde Carboniferous 
Lava-Plateaus. By G. W. Tyrrell, A.R.C.Sc., F.G.S., 
Lecturer in Mineralogy and Petrology, University of 
Glasgow. Communicated by Dr Horne, F.R.S., . . 288 
{Issued separately February 6 , 1917 .) 
XIX. On Systems of Partial Differential Equations and the Trans- 
formation of Spherical Harmonics. By H. Bateman, 
Pli.D. Communicated by Professor Whittaker, . . 300 
{Issued separately March 1 , 1917 .) 
XX. The Structure and Life-History of firacon sp. : a Study in 
Parasitism. By James W. Munro, B.Sc. (Agr.) and B.Sc. 
(For.), Board of Agriculture Research Scholar. Communi- 
cated by Dr R. Stewart MacDotjgall. (With Two Plates), 313 
{Issued separately March 1 , 1917 .) 
Obituary Notices: — 
Professor G wynne- Vaughan. By Professor F. O. Bower, F.R.S., 334 
Sir William Turner, K.C.B., D.L., M.B., F.R.C.S.L., F.R.C.S.E., 
LL.D., D.Sc., F.R.S., Principal and Vice-Chancellor, Uni- 
versity of Edinburgh, Honorary Burgess of the City of 
Edinburgh. By Sir James A. Russell. (With One Plate), 340 
Appendix — 
Laws of the Society, J . . . . . . . . 375 
The Keith, Makdougall- Brisbane, Neill, and Gunning Victoria 
Jubilee Prizes, ......... 382 
Awards of the Keith, Makdougall-Brisbane, Neill, and Gunning 
Victoria Jubilee Prizes, ....... 385 
Proceedings of the Statutory General Meeting, October 1915, . 390 
Proceedings of the Ordinary Meetings, Session 1915-1916, . 392 
Proceedings of the Statutory General Meeting, October 1916, . 398 
Accounts of the Society, Session 1915-1916, .... 399 
The Council of the Society at October 1916, . . . . 405 
Alphabetical List of the Ordinary Fellows of the Society at 
January 1, 1917, . . . . . . . . 406 
List of Honorary Fellows of the Society at January 1, 1917, . 424 
List of Ordinary Fellows of the Society elected during Session 
1915-1916, 426 
Honorary Fellows and Ordinary Fellows deceased and resigned 
during Session 1915-1916, . 426 
List of Library Exchanges, . . . . . . .427 
List of Periodicals purchased by the Society, . . . .451 
Additions to Library during 1916, by gift or purchase, . . 455 
List of Papers published in Transactions during Session 1915-16, 460 
Index, ............ 462 
The Papers published in this part of the Proceedings may be 
had separately , on application to the Publishers , at the follow- 
ing prices : — 
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No. XI. 
No. XII. 
No. XIII. 
No. XIV. 
No. XV. 
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No. XVI. 
No. XVII. 
No. XVIII, 
No. XIX. 
No. XX. 
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