Copy letter from Herbert Rix, to [John William Strutt] Lord Rayleigh, [Royal Society] 'My Lord, Mr Sinclair consents to rewrite his paper, but wants access to the original. May I send him the MS [manuscript]? If not, he is willing to pay for a copy of it; but probably there would be no objection to our saving him that expense? Yours truly H Rix With the compliments of the Season'. 31 December 1891