• Darwin Archive | 'Cross and self fertilisation': portfolios, 1840s-1876 | 'Cross and self fertilisation': experimental results, [1840s]-1875 | Summary of results - observations assumed to have been made each day at 12h They were really made at 8am & 4pm [table], 1809-01-01 - 1882-04-30 | Summary of results - observations assumed to have been made each day at 12h They were really made at 8am & 4pm [table], 1809-01-01 - 1882-04-30

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