• Darwin Archive | 'Origin of Species': portfolios I | Materials for chapter 8: 'Transition of organs' | 'Natural Selection' Portfolios, notes on 'Cell-making instinct of the hive-bee' | NS I Hive bee instincts-12 Note, 1809-01-01 - 1882-04-30 | Depth of rhomb..., 1809-01-01 - 1882-04-30

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