The trip I made to Angola to study the prehistoric contents of the gravel beds as a means of deciding the age of the deposits and their economic potential was the first time prehistory had ever been used for such a purpose.

Raising funds for my fourth expedition proved to be very difficult.

Sometimes string figures were used to illustrate stories, as in the case of an Eskimo example that depicts a man catching a salmon. Sometimes they had magic or religious significance.

South Africa had a long record of studies in prehistory, going back to the end of the last century.

Colonial governors and senior civil servants are not easy people to argue with, and I was not popular because of my criticism of the colonial service in Kenya.

People frequently ask me why I devote so much time to seeking out facts about man’s past…the past shows clearly that we all have a common origin and that our differences in race, colour and creed are only superficial.

Stone tools are fossilized human behavior.