Autograph Letter Signed, to Professor Wheatstone, introducing the bearer, “the inventor of a very curious instrument”, asking him to help making the invention known. 2 pp. 7 x 4½ inches, with address leaf, remains of guard where formerly mounted. Bayswater, 30 March 1835. “Mr. L. has also recommended him to take it to Mr. Faraday.” Jane Webb Loudon (1807-1858), horticultural and miscellaneous writer. In addition to Prose and Verse (1824) she published anonymously The Mummy! A Tale of the Twenty-Second Century (1827), a pioneering work of science fiction that brought together political commentary, Egyptomania, and interest in technology. She accompanied her husband, John Claudius Loudon (1783-1843), the landscape gardener, on his journeys. Her books were part of an effort to reduce her husband’s debts. Jane Loudon’s most successful work was ‘The Ladies’ Companion to the Flower Garden’ [1841, and many later editions].