APPENDIX.—KEITH, MAKDOUGALL-BRISBANE, AND NEILL PRIZES. 873 
157TH BrenniaL 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 Breyniau Periop, 1857—59.— Not awarded. 
177H Brennrat Periop, 1859-61.—Joun Auttan 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. 
18TH Brenniar Periop, 1861—63.—Professor Witt1am THomson, of the University of Glasgow, for his 
Communication “on some Kinematical and Dynamical 
Theorems.” 
197TH Bienniat Periop, 1863—65.—Principal Forses, St Andrews, for his “Experimental Inquiry into 
the Laws of Conduction of Heat in Iron Bars,” published in 
the Transactions of the Society, 
20TH Brennrat Periop, 1865-—67.—Professor C. Prazzi Smyta, for his paper “on Recent Measures at 
the Great Pyramid,” published in the Transactions of the 
Society. 
21st Breyniat Periop, 1867—69.—Professor P. G. Tart, for his paper “ on the Rotation of a Rigid 
Body about a Fixed Point,” published in the Transactions of 
the Society. 
22p Brenntat Periop, 1869-71.—Professor Crurk Maxwewt, for his paper “on Figures, Frames, 
and Diagrams of Forces,” published in the Transactions of the 
Society. 
23p Brenntat Periop, 1871—73.—Professor P. G. Tair for his paper entitled “ First Approximation | 
to a Thermo-electric Diagram,” published in the Transactions 
of the Society. 
247H Brenntau Periop, 1873—75.—Professor Crum Brown, for his Researches “on the sense of Rota- 
tion, and on the Anatomical Relations of the Semicircular 
Canals of the Internal Ear.” 
25TH Brenntat Periop, 1875-77.—Professor M. Forstsr Heppus, for his papers “on the Rhom- 
bohedral Carbonates,” and “on the Felspars of Scotland,” 
published in the Transactions of the Society. 

Il. MAKDOUGALL-BRISBANE PRIZE. 
Ist Breyntan Psrtiop, 1859.—Sir Roprerick Impry Murcuison, on account of his Contributions to 
the Geology of Scotland. 
2p Bienniat Pertop, 1860—62.—Wixtiam Sevier, M.D., F.R.C.P.E., for his ‘‘ Memoir of the Life 
and Writings of Dr Robert Whytt,” published in the Trans- 
actions of the Society. 
3p BrenniaL Periop, 1862—64.—Joun Dents Macponatp, Esq., R.N., F.R.S., Surgeon of H.M.S. 
“Tearus,” for his paper “on the Representative Relationships 
of the Fixed and Free Tunicata, regarded as Two Sub-classes 
of equivalent value; with some General Remarks on their 
Morphology,” published in the Transactions of the Society. 
47H Bipnniat Periop, 1864—66.—Not awarded. 
VOL. XXVIIL, PART’ Ill. 10 T 
