Adjudication of the Medals of the Royal Society for the year 1855 by 
the President and Council. 
The Copley Medal to M. Leon Foucault, for his various researches in Experi- 
mental Physics. 
A Royal Medal to John Russell Hind, Esq., Superintendent of the Nautical 
Almanack, for his discovery of ten Planetoids, the computation of their orbits, and 
various other astronomical discoveries. 
A Royal Medal to John Obadiah Westwood, Esq., for his various Monographs 
and Papers on Entomology. 
The Bakerian Lecture was delivered by John Tyndall, PhD., F.R.S., Professor 
of Natural Philosophy in the Royal Institution, and entitled “On the Nature of the 
Force by which Bodies are repelled from the Poles of a Magnet ; to which is prefixed, 
an Account of some Experiments on Molecular Influences.” 
