Copy letter from Michael Foster, to Dr F Clemow, 19 Earl's Court Square, S.W. 'Sir, In reply to your letter of February 19, stating that the Russian National Health Society propose to celebrate on May 14th the centenary of the first experiment in vaccination made by Dr Jenner, I am directed to express on the part of the President and Council their sympathetic interest in the occasion and their regret that they are unable to appoint a delegate. I am, your obedient servant, (signed) M. Foster Sec. R.S. [Secretary, Royal Society]'. 21 March 1896