Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker [20 February 1860]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>Comments on W. H. Harvey’s article on a monstrous <i>Begonia</i> [<i>Gard. Chron.</i> 18 Feb 1860].</p><p style='text-align: justify;'>Is astonished at being attacked for not allowing great and abrupt variations under nature. More evidence needed to make CD admit that forms have often changed "by saltum".</p>