( 716) 
AWARDS OF THE KEITH, MAKDOUGALL-BRISBANE, AND NEILL PRIZES, 
FROM 1827 TO 1879. 
I. KEITH PRIZE. 
lst Brennrat Periop, 1827-29.—Dr Brewster, for his papers “on his Discovery of Two New Inmis- 
cible Fluids in the Cavities of certain Minerals,” published in 
the Transactions of the Society. 
2p BrewniaL Pertop, 1829-31.—Dr Brewster, for his paper ‘on a New Analysis of Solar 
Light,” published in the Transactions of the Society. 
3p Brenniat Periop, 1831-33.—TuHomas Grauam, Esq., for his paper “ on the Law of the Diffusion 
of Gases,” published in the Transactions of the Society. 
47H BrenniAu Periop, 1833-—35.—Professor J. D. Forsss, for his paper “ on the Refraction and Polari- 
zation of Heat,” published in the Transactions of the Society. 
5TH Brenniat Periop, 1835-37.—Joun Scorr Russet, Esq.,for his Researches “on Hydrodynamics,” 
published in the Transactions of the Society. 
6TH BrenniaL Periop, 1837-39.—Mr Joun Suaw, for his experiments “on the Development and 
Growth of the Salmon,” published in the Transactions of the 
Society. 
7TH BrpnniaL Periop, 1839—41.—Not awarded. 
87TH BienniAL Periop, 1841-43.—Professor James Davin Forsss, for his Papers “on Glaciers,” 
published in the Proceedings of the Society. 
97TH BipnniAL Pertop, 1843-—45.—Not awarded. 
1078 Brenniat Periop, 1845—-47.—General Sir THomas Brispans, Bart., for the Makerstoun Observa- 
tions on Magnetic Phenomena, made at his expense, and 
published in the Transactions of the Society. 
llvn Brenna Periop, 1847—49.—Not awarded. 
12rH Brenniau Periop, 1849-51.—Professor Kutzanp, for his papers “on General Differentiation, 
including his more recent communication on a process of the 
Differential Calculus, and its application to the solution of 
certain Differential Equations,” published in the Transactions 
of the Society. 
’ 137H Brennrat Periop, 1851-53.—W. J. Macquorn Ranxinz, Esq., for his series of papers “ on the 
Mechanical Action of Heat,” published in the Transactions 
of the Society. 
147 BrenniaL Periop, 1853-55.—Dr Tuomas Anperson, for his papers “on the Crystalline Con- 
stituents of Opium, and on the Products of the Destructive 
Distillation of Animal Substances,” published in the Trans- 
actions of the Society. 
15TH Bisnniat Periop, 1855-57.—Professor Boots, for his Memoir “on the Application of the Theory 
of Probabilities to Questions of the Combination of Testimonies 
and Judgments,” published in the Transactions of the Society. 
