[ 'Pneumonia Evening' at the Osler Club, London. ] Signed Typed Circular from L. Carlyle Lyon, Assistant Secretary to the Osler Club, addressed to Dr Nehemiah Asherson, regarding the 'Pneumonia Evening' and the Club. With annotations by Asherson.

1p., folio. In fair condition, on aged and worn paper, with leaf from diary tipped in onto blank reverse. Signed 'L. Carlyle Lyon', addressed by Lyon to 'Mr. Asherson' with seasonal greetings in autograph. Heavily annotated with notes by Asherson. Begins: 'You are cordially invited to attend (with a friend or friends) the "Pneumonia Evening" of the OSLER CLUB (President, Mr. V. Zachary Cope, F.R.C.S, in the Chair) on FRIDAY, January 11th, at 7.45 p.m. at the Medical Society of London, 11, Chandos Street, Cavendish Square, W.1. | Speakers: Lord Horder, G.C.V.O.: "Osler and Pneumonia". | Sir Lionel Whitby, C.V.O., M.C.: "The Advent of the Sulphonamides". | Sir Adolphe Abrahams, O.B.E.: "The Changing Character of the Disease".' The circular continues with a description of the Osler Club and its aims and membership details, with a list of future evenings and an invitation to join.