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



15th Biennial Period, 1886-88. — Archibald Geikie, Esq., LL.D., for numerous communications, 



especially that entitled " History of Volcanic Action during 

 the Tertiary Period in the British Isles," published in the 

 Transactions of the Society. 



16th Biennial Period, 1888-90. — Dr Ludwig Becker, for his Paper on "The Solar Spectrum at 



Medium and Low Altitudes," printed in Vol. XXXVI. 

 Part I. of the Society's Transactions. 



17th Biennial Period, 1890-92. — Hugh Robert Mill, Esq., D.Sc, for his Papers on "The Physical 



Conditions of the Clyde Sea Area," Part I. being already 

 published in Vol. XXXVI. of the Society's Transactions. 



18th Biennial Period, 1892-94. — Professor James Walker, D.Sc, Ph.D., for his work on Physical 



Chemistry, part of which has been published in the Pro- 

 ceedings of the Society, Vol. XX., pp. 255-263. In making 

 this award, the Council took into consideration the work 

 done by Professor Walker along with Professor Crum Brown 

 on the Electrolytic Synthesis of Dibasic Acids, published in 

 the Transactions of the Society. 



19th Biennial Period, 1894-96. — Professor John G. M'Kendrick, for numerous Physiological 



papers, especially in connection with Sound ; many of which 

 have appeared in the Society's publications. 



20th Biennial Period, 1896-98. — Dr William Peddie, for his papers on the Torsional Rigidity 



of Wires. 



III. THE NEILL PRIZE. 



1st Triennial Period, 1856-59. — Dr W. Lauder Lindsay, for his paper " on the Spermogones and 



Pycnides of Filamentous, Fruticulose, and Foliaceous Lichens," 

 published in the Transactions of the Society. 



2nd Triennial Period, 1859-62. — Robert Kaye Greville, LL.D., for his Contributions to Scottish 



Natural History, more especially in the department of Cryp- 

 togamic Botany, including his recent papers on Diatomaceae. 



3rd Triennial Period, 1862-65. — Andrew Crombie Ramsay, E.R.S., Professor of Geology in the 



Government School of Mines, and Local Director of the 

 Geological Survey of Great Britain, for his various works and 

 Memoirs published during the last five years, in which he 

 has applied the large experience acquired by him in the 

 Direction of the arduous work of the Geographical Survey of 

 Great Britain to the elucidation of important questions bear- 

 ing on Geological Science. 



4th Triennial Period, 1865-68. — Dr William Carmichael MTntosh, for his paper "on the Struc- 

 ture of the British Nemerteans, and on some New British 

 Annelids," published in the Transactions of the Society. 



5th Triennial Period, 1868-71. — Professor William Turner, for his papers "on the great Finner 



Whale ; and on the Gravid Uterus, and the Arrangement of 

 the Foetal Membranes in the Cetacea," published in the 

 Transactions of the Society. 



6th Triennial Period, 1871-74. — Charles William Peach, Esq., for his Contributions to Scottish 



Zoology and Geology, and for his recent contributions to Fossil 

 Botany. 



7th Triennial Period, 1874—77. — Dr Ramsay H. Traquair, for his paper " on the Structure aid 



Affinities of Tristichopterus alatus (Egerton)," published in 

 the Transactions of the Society, and also for his contributions 

 to the Knowledge of the Structure of Recent and Fossil Fishes. 



