734 
Proceedings of the Royal Society of Edinburgh. 
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 Buchan, 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. 
