Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker 2 March [1859]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>Has finished geographical distribution chapter and asks JDH to read it.</p><p style='text-align: justify;'>Is it just to say embryological characters are of high importance in plant classification?</p>