PROCEEDINGS 
OF THE 
ROYAL PHYSICAL SOCIETY. 
SESSION CXXII. 
Wednesday, 16th November 1892.—JOHNSON SYMINGTON, Esq., 
M.D., F.R.S.E., retirmg Vice-President, in the Chair. 
The retiring Vice-President delivered the following 
opening address :— 
GENTLEMEN,—It is my duty, as retiring Vice-President, to 
deliver the opening address of this, the 122nd Session of the 
Royal Physical Society, and I have selected as my subject 
the Cerebral Convolutions in the Primates—a review of our 
knowledge of their anatomy and physiology. The intimate 
association between the cerebral convolutions and the mental 
processes must ever render their study one of general interest, 
while the great activity which has been displayed in the 
investigation of their arrangement and functions by the 
anatomist, physiologist, and pathologist, and the rich harvest 
which their united labours have gathered, afford abundant 
material for the illustration of the methods and results of 
scientific work. 
In 1771, when this Society was founded, cerebral anatomy 
was in its infancy, Notwithstanding the labours of Vesalius, 
Willis, Bidloo, Vieussens, Tarin, and others, our knowledge 
of the ordinary naked-eye anatomy of the human brain was 
VOL. XII. A 
