A series on the current work of Fellows of the Royal Society.
With Dr. Wilder Penfield, O.M., F.R.S.
"The Roar of the Crowd' is how the continuous activity of the ten thousand million cells in the human brain has been described. At the Montreal Neurological Institute, Canada, Dr. Penfield and his colleagues study the brain in sickness and in health, to acquire new knowledge of its workings and to develop treatments for diseases such as epilepsy.
Technical facilities by Niagara Films Inc.