Adjudication of the Medals of the Royal Society for the year 1877 by 
the President and Council. 
The Copley Medal to Professor James Dwight Dana, for his Biological, Geological, 
and Mineralogical Investigations, carried on through half a century, and for the 
valuable works in which his conclusions and Discoveries have been published. 
A Royal Medal to Mr. Frederick Augustus Abel, F.R.S., for his Physico-Chemical 
Researches on Gun-Cotton and Explosive Agents. 
A Royal Medal to Professor Oswald Heer, for his numerous Researches and 
Writings on the Tertiary Plants of Europe, of the North Atlantic, North Asia, and 
North America, and for his able generalizations respecting their affinities and their 
geological and climatic relations. 
The Davy Medal to Robert Wilhelm Bunsen, For. Mem. R.S., and Gustav Robert 
Kirchhoff, For. Mem. R.S., for their Researches and Discoveries in Spectrum Analysis. 
The Bakerian Lecture was delivered by Professor W. C. Williamson, F.R.S. : it 
was entitled “ On the Organization of the Fossil Plants of the Coal-measures. — Part IX. 
The latest Researches into the Organization of the Fossil Plants of the British Coal- 
measures, especially of the Calamites and Lepidodendra .” 
The Paper “ On the Mechanical Effects and on the Electrical Disturbance conse- 
quent on Excitation of the Leaf of Dioncea muscipula ,” by Dr. J. B. Sanderson, F.R.S., 
and F. J. M. Page, was appointed as the Croonian Lecture. 
