Letter from Otto Edholm, Honorary Secretary of the Research Defense Society, 11 Chandos Street, Cavendish Square, London W1, to the Head of the Dept of Physiology [Queen's University, Belfast] Informs the head that 'in view of recent events...those in charge of animals kept for experimental purposes might like to have some guidance from the Research Defence Society'. Outlines a list of rules regarding entry to the animal rooms and 'animals being used for survival experiments...cannot be shown to lay persons'. July 1946