Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [John Cunningham] McLennan, FRS Refers to the paper by H. Grayson Smith, 'A correspondence between the spectrum of the pottasium ion and the spectrum of argon', that Professor [John Cunningham] Mclennan communicated to the Society. Encloses a copy of the report and asks if, considering the circumstances, Professor McLennan would like to withdraw the paper [not enclosed]. 22 February 1923