Adjudication of the Medals of the Royal Society for the year 1861 by 
the President and Council. 
The Copley Medal to Professor Louis Agassiz, of Cambridge, Massachusetts, Foreign 
Member of the Royal Society, for his Researches in Palaeontology and other branches 
of science, and particularly for his great works the “ Poissons Fossiles,” and “ Les 
Poissons du vieux Gres Rouge d’Ecosse.” 
A Royal Medal to Dr. William B. Carpenter, F.R.S., for his Researches on the 
Foraminifera, contained in four Memoirs in the Philosophical Transactions, his investi- 
gations into the Structure of Shell, his observations on the embryonic Development of 
Purpura, and his various other writings in Physiology and Comparative Anatomy. 
A Royal Medal to Professor James Joseph Sylvester, F.R.S., for his various 
Memoirs and Researches in Mathematical science. 
The Bakerian Lecture was delivered by Professor J. Tyndall, F.R.S. : it was 
entitled ““ On the Absorption and Radiation of Heat by Gases and Vapours, and on the 
Physical Connexion of Radiation, Absorption, and Conduction.” 
The Croonian Lecture was delivered by Charles Edouard Brown-Sequard, Esq., 
F.R.S. : it was entitled “On the Relations between Muscular Irritability, Cadaveric 
Rigidity, and Putrefaction.” 
