Spencer, Herbert 1820-1903 creator mixed material monographic eng 4 Four ALS from Spencer, including two letters of introduction (1868 February 29 and 1869 January 15) for Nicholas Leon Thieblin, a letter (1868 June 25) written by him to Thieblin, and a letter (1867 December 30) to an unknown recipient regarding a translation of his book, First Principles of a New System of Philosophy (1864). Open to research. Philosopher. Collection material in English. Forms part of: Miscellaneous Manuscripts collection. Spencer, Herbert 1820-1903 Translations Thieblin, Nicholas Leon 1834-1889 Philosophers mm 79001799 Open to research. DLC 791217 20260227111638.0 mm 79001799