Letter 11281
Saporta, L. C. J. G. de to Darwin, C. R.
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He has heard CD is about to be elected to the Académie des Sciences.
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Cross and self-fertilisation, with its emphasis on insect pollination, helps explain the problem he has worked on for so long: i.e., the rapid diversification of angiosperms in the fossil record occurs in conjunction with the diversification of insects.