A biologist's reflections on the human brain by J.Z. Young, F.R.S., Professor of Anatomy at University College, London

In the first of eight lectures Professor Young suggests that doubt and certainty, the characteristics of scientific thinking, are also characteristic of human thought in general. He believes that this is the case because of the very nature of the human brain. Professor Young describes how, in these lectures, he will look at man from the point of view of a biologist, and he indicates the conclusions to which a study of recent work on the brain has led him.