( 662 ) 
AWARDS OF THE KEITH, MAKDOUGALL-BRISBANE, AND NEILL PRIZES, 
FROM 1827 TO 1879. 
IJ. KEITH PRIZE. 
lst Brenn1au Periop, 1827—29.—Dr Brewster, for his papers “on his Discovery of Two New Immis- 
cible Fluids in the Cavities of certain Minerals,” published in 
the Transactions of the Society. 
2np Brenniat Pertop, 1829-31.—Dr Brewster, for his paper “fon a New Analysis of Solar 
Light,” published in the Transactions of the Society. 
3rD Bienniau Periop, 1831—-33.—THomas Grauam, Esq., for his paper “on the Law of the Diffusion 
of Gases,” published in the Transactions of the Society. 
47H Biennial Peniop, 1833-—35.—Professor J. D. Forsss, for his paper “ on the Refraction and Polari- 
zation of Heat,” published in the Transactions of the Society. 
57H Brennrau Periop, 1835-37.—Joun Scorr Russet, Esq.,for his Researches “on Hydrodynamics,” 
published in the Transactions of the Society. 
67TH Brennrat Periop, 1837-39.—Mr Jonun Suaw, for his experiments “on the Development and 
Growth of the Salmon,” published in the Transactions of the 
Society. 
7TH Brpnntat Periop, 1839—41.—Not awarded. 
87H Brennrat Periop, 1841-43.—Professor James Davip Forbes, for his Papers “on Glaciers,” 
published in the Proceedings of the Society. 
9TH Brenniat Parton, 1843-45.—Not awarded. 
107TH Brennraut Periop, 1845-47.—General Sir Tuomas BrisBane, Bart., for the Makerstoun Observa- 
tions on Magnetic Phenomena, made at his expense, and 
published in the Transactions of the Society. 
lira Brennrau Perrop, 1847—49.—Not awarded. 
127TH BrenniaL Periop, 1849-51.—Professor Ketuanp, 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 BrenniaL Periop, 1851-53.—W. J. Macquorn Ranxrne, Esq., for his series of papers “ on the 
Mechanical Action of Heat,” published in the Transactions 
of the Society. 
147 Brenntau Periop, 1853-55;—Dr Tuomas Anpmrson, 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 BrenntaL 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, 
16TH BrENNrIAL Periop, 1857—59.—Not awarded. 
177H Brenniat Perron, 1859-61.—Jonn Atuan Broun, Esq., F.R.S., Director of the Trevandrum 
Observatory, for his papers “on the Horizontal Force of the 
Earth’s Magnetism, on the Correction of the Bifilar Magnet- 
ometer, and on Terrestrial Magnetism generally,” published in 
the Transactions of the Society. 
