Copy letter from Herbert Rix, to Messrs Sampson Low, Marston & Company Rix has seen an advertisement in 'Nature Notes', which has been running for several weeks, which has styled Dr Edward Hamilton, the author of 'The Riverside Naturalist', as F.R.S. [Fellow of the Royal Society], and points out that Hamilton is not entitled to use those letters. He is directed to request that the advertisement is altered for the future, and, if necessary, that a new title page be printed. 17 April 1891