Letter from [Joseph] Saville Garner [Private Secretary to the Secretary of State for Dominion Affairs, Lord Cranborne, later 5th Lord Salisbury] to John Martin [Private Secretary to WSC], on a request for leave received by Lord Cranborne from Malcolm MacDonald [British High Commissioner in Canada] who wishes to discuss recent developments raised by Mackenzie King [Prime Minister of Canada]; annotated by WSC postponing leave, with reply.