Letter from Thomas Henderson, 1 Old Palace Yard, Westminster, [Dr. Peter Mark Roget and John George Children,] Secretaries of the Royal Society Regarding his recent appointment as Astronomer Royal at the Royal Observatory at the Cape of Good Hope, replacing Rev. [Fearon] Fallows. Henderson requests a copy of the 'Philosophical Transactions' be regularly sent to the Observatory, in particular copies of [Karl Ludwig Christian] Rumkers' observations. 13 December 1831