Copy letter from Herbert Rix, to H Carus-Wilson, 11 Grenville Place, S.W. Rix notes they have decided not to wait for Carus-Wilson's brother's answer as to whether he considers the two photographic plates necessary illustrations of his paper, and Rix is authorised to proceed with them. When Rix saw Carus-Wilson he told Rix that he had the negatives of these two photographs and Rix wonder if these are available to his brother. If not they will work from the positives in the Society's possession. 1 January 1891