Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Michael H. Mason Esquire; 16 Bruton Street, W.l. Acknowledges receipt of Mr. Michael H. Mason's letter enclosing the account of his observations in the Yukon Territory. Notes that he is not knowledgeable enough to advise on the phenomenon described therein, however, that he has passed the account on to another Fellow who is more expert on the matter. 29 May 1922