[ Sir Arthur William Rucker, physicist, Principal of the University of London. ] Autograph Letter Signed ('Arthur W. Rücker') to 'Mrs Green', wife of the geologist A. H. Green,, explaining the difficulty in forwarding her letter to 'Dr Thorpe'.

From the papers of the family of the second wife of the geologist Alexander Henry Green (1832-1896), previously Miss Wilhelmina Maria Armstrong of Clifton. 1p., 12mo. In good condition, lightly aged. As 'Dr Thorpe' has not send him his address 'as he promised to', Rucker does not know 'exactly where he is'. He will send her letter to Thorpe's house, 'whence it will be forwarded'.