• Darwin Archive | 'Power of movement': portfolios, 1862-1882 | Circumnutation of leaves, sleep. Extant subfolders: Cassia, Lotus, Melilotus, 1873-11-24 - 1878-12-31 | Trifolium repens, 1877-09-30 - 1877-10-02 | [of 'Descent'] ch 8 p 44 later 47 [published vol 1 pp 285-286], 1866-01-01 - 1882-04-30

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