Prof. Ernest A. McCulloch shown here (3rd from right) with colleagues at the Symposium on Cell Multiplication.

Original members of the Playfair Committee.

Dr. James Till in laboratory

Ursula Franklin, Professor of Materials Science

Astronomer, Helen Sawyer Hogg beside the of the David Dunlop optical telescope

Ursula Franklin in laboratory

James Till in his laboratory, 1975

Unidentified medical researcher

J. Tuzo Wilson with model of earth showing tectonic plates.