Darwin-Hooker Letters : Letter from J. D. Hooker to C. R. Darwin [8 July 1855]
Hooker, Joseph Dalton
Darwin-Hooker Letters
<p style='text-align: justify;'>Australian Leguminosae problem: of 900 species not ten are common to southwest and southeast. No migration; hence either creation or variation.</p><p style='text-align: justify;'>Himalayan thistles: graded intermediates between large and small English species, "shakes species to their foundations". Similarity of CD’s and his views on species.</p>