STEFAN ZWEIG COLLECTION. Vol. CXLI. Charles Darwin: fragment of 'Insectivorous Plants', with some mathematical calculations relating to meridians on the verso; n.d. Draft. Published in 1875. See The Works of Charles Darwin, ed. P. H. Barrett and R. B. Freeman, vol. 24 (1989), p. 307. f. 1. 165 x 200...
