Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker 28 January [1859]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>CD not convinced that naturalisation of European plants abroad is strictly dependent on creation by agriculture of disturbed ground.</p><p style='text-align: justify;'>More than half through his chapter on geographical distribution.</p>