Copy letter from Herbert Rix, to the Superintendent of Records, India Office 'Sir, I write to ask if you would be good enough to present to this library, or name the proper authorities to present to this library, Black's Memoir on Indian Surveys published by order of the Secretary of State for India last year. I am, Sir, your obedient servant, Herbert Rix Librarian RS [Royal Society] I may mention that we send over our publications to the Trigonometrical Survey & certain other Govt [Government] departments in India'. 7 January 1892