388 
Proceedings of the Eoyal Society of Edinburgh. 
20th Biennial Period, 1896-98. — Dr William Peddie, for his papers on the Torsional Rigidity 
of Wires. 
21st Biennial Period, 1898-1900. — Dr Ramsay H. Traquair, for his paper entitled “ Report on 
Fossil Fishes collected by the Geological Survey in the Upper Silurian Rocks of Scotland,” 
printed in vol. xxxix of the Transactions of the Society. 
22nd Biennial Period, 1900-02. — Dr Arthur T. Masterman, for his paper entitled “The 
Early Development of Cribrella oculata (Forbes), with remarks on Echinoderm Development,” 
printed in vol. xl of the Transactions of the Society. 
23rd Biennial Period, 1902-04. — Mr John Dougall, M.A., for his paper on “An Analytical 
Theory of the Equilibrium of an Isotropic Elastic Plate,” published in vol. xli of the 
Transactions of the Society. 
24tii Biennial Period, 1904-06. — Jacob E. Halm, Ph.D., for his two papers entitled “Spectro- 
scopic Observations of the Rotation of the Sun,” and “Some Further Results obtained with 
the Spectroheliometer, ” and for other astronomical and mathematical papers published in 
the Transactions and Proceedings of the Society within the period. 
25th Biennial Period, 1906^08. — D. T. Gwynne-Yaughan, M.A., F.L.S., for his papers, 
1st, “ On the Fossil Osmundacese, ” and 2nd, “ On the Origin of the Adaxially-curved Leaf- 
trace in the Filicales,” communicated by him conjointly with Dr R. Kidston. 
26th Biennial Period, 1908-10. — Ernest MacLagan Wedderburn, M.A., LL.B., for his 
series of papers bearing upon “The Temperature Distribution in Fresh-water Lochs,” and 
especially upon ‘ ‘ The Temperature Seiche. ” 
27th Biennial Period, 1910-12. — John Brownlee, M.A., M.D., D.Sc., for his contributions 
to the Theory of Mendelian Distributions and cognate subjects, published in the Proceedings 
of the Society within and prior to the prescribed period. 
28th Biennial Period, 1912-14. — Professor C. R. Marshall, M.D., M.A., for his studies “On 
the Pharmacological Action of Tetra-alkyl-ammonium Compounds.” 
III. THE NEILL PHXZE. 
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 Trans- 
actions of the Society. 
2nd Triennial Period, 1859-61. — Robert Kaye Greville, LL.D., for his contributions to 
Scottish Natural History, more especially in the department of Cryptogamic Botany, 
including his recent papers on Diatomacese. 
3rd Triennial Period, 1862-65. — Andrew Ckombie Ramsay, F.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 live years, in which he 
has applied the large experience acquired by him in the Direction of the arduous work of 
the Geological Survey of Great Britain to the elucidation of important questions bearing on 
Geological Science. 
4th Triennial Period, 1865-68. — Dr William Carmichael MTntosh, for his paper “on the 
Structure 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 
and 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. 
8tii Triennial Period, 1877-80. — John Murray, Esq., for his paper “on the Structure 
and Origin of Coral Reefs ajid Islands,” published (in abstract) in the Proceedings of 
the Society. 
9th Triennial Period, 1880-83. — Professor Herdman, for his papers “on the Tunicata,” 
published in the Proceedings and Transactions of the Society. 
10th Triennial Period, 1883-86.— B. N. Peach, Esq., for his Contributions to the Geology and 
Palseontology of Scotland, published in the Transactions of the Society. 
