718 Proceedings of the Koyal Society of Edinburgh. 
15th Triennial Period, 1898-1901. — Dr John S. Flett, for his papers entitled “The Old Red 
Sandstone of the Orkneys” and “The Trap Dykes of the Orkneys,” printed in vol. 
xxxix. of the Transactions of the Society. 
16th Triennial Period, 1901-04. — Professor J. Graham Kerr, M.A., for his Researches on 
Lepidosiren paradoxa , published in the Philosophical Transactions of the Royal Society, 
London. 
17th Triennial Period, 1904-07. — Frank J. Cole, B.Sc., for his paper entitled “ A Monograph 
on the General Morphology of the Myxinoid Fishes, based on a study of Myxine,” published 
in the Transactions of the Society, regard being also paid to Mr Cole’s other valuable contri- 
butions to the Anatomy and Morphology of Fishes. 
1st Biennial Period, 1907-09. — Francis J. Lewis, M.Sc. , F.L.S., for his papers in the Society’s 
Transactions “ On the Plant Remains of the Scottish Peat Mosses.” 
IV. GUNNING VICTORIA JUBILEE PRIZE. 
1st Triennial Period, 1884-87. — Sir William Thomson, Pres. R.S.E., F.R.S., for a remark- 
able series of papers “on Hydrokinetics,” especially on Waves and Vortices, which have 
been communicated to the Society. 
2nd Triennial Period, 1887-90. — Professor P. G. Tait, Sec. R.S.E., for his work in connection 
with the ‘ ‘ Challenger ” Expedition, and his other Researches in Physical Science. 
3rd Triennial Period, 1890-93. — Alexander Bijchan, Esq., LL.D., for his varied, extensive, 
and extremely important Contributions to Meteorology, many of which have appeared in the 
Society’s Publications. 
4th Triennial Period, 1893-96. — John Aitken, Esq., for his brilliant Investigations in 
Physics, especially in connection with the Formation and Condensation of Aqueous Vapour. 
1st Quadrennial Period, 1896-1900. — Dr T. D. Anderson, for his discoveries of New and 
Variable Stars. 
2nd Quadrennial Period, 1900-04. — Sir James Dewar, LL.D., D.C.L., F.R.S., etc., for his 
researches on the Liquefaction of Gases, extending over the last quarter of a century, and 
on the Chemical and Physical Properties of Substances at Low Temperatures : his earliest 
papers being published in the Transactions and Proceedings of the Society. 
3rd Quadrennial Period, 1904-08. — Professor George Chrystal, M.A., LL.D., for a series of 
papers on “ Seiches,” including “The Hydrodynamical Theory and Experimental Investiga- 
tions of the Seiche Phenomena of Certain Scottish Lakes. ” 
