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CHARLES DARWIN (1809-92) & OTHERS
A 1p. a.l.s. by Darwin, of 12 lines, dated Down, Beckenham, Kent, [n.d.], thanking the recipient for a letter regarding "the Atropia ... us here have tried several extracts & as they are prepared apparently in the same way, without the use of any animal matter, the trial, as far as it goes, is fair;" together with his clipped signature, a 3pp. a.l.s. by Francis Darwin, a 4pp. a.l.s. by George Howard Darwin and a 1p. a.l.s. by Horace Darwin, all requesting solutions and preparations and two other related a.l.s. (7)
