Adjudication of the Medals of the Royal Society for the year 1886, 
by the President and Council. 
The Copley Medal to Professor Franz Ernst Neumann, For. Mem. R.S., for his 
researches in Theoretical Optics and Electro-dynamics. 
A Royal Medal to Francis Galton, F.E.S., for his Statistical Inquiries into 
Biological Phenomena. 
A Royal Medal to Professor Peter Guthrie Tait for his various Mathematical 
and Physical researches. 
The Rumford Medal to Professor Samuel P. Langley for his researches on the 
Spectrum by means of the Bolometer. 
The Davy Medal to Professor Jean Charles Galissard de Marignac, For. 
Mem. R.S., for his researches on Atomic Weights. 
The Bakerian Lecture, “ Colour Photometry,” was delivered by Captain Abney, 
R.E., F.R.S., and Major-General Festing, R.E. 
The Croonian Lecture, “ On the Coagulation of the Blood,” was delivered by L. C. 
Wooldridge, M.B., D.Sc. 
