APPENDIX — KEITH, BRISBANE, NEILL, AND GUNNING PRIZES. 933 



IV. GUNNING VICTORIA JUBILEE PRIZE. 



1st Triennial Period, 1884-87. — Sir William Thomson, Pres. R.S.E., F.R.S., for a remarkable 



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., &c, 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. 



TRANS. ROY. SOC. EDIN., VOL. XLV. PART IV. (APPENDIX). 135 



