Darwin-Hooker Letters : Letter from J. D. Hooker to C. R. Darwin [mid-July 1845]
Hooker, Joseph Dalton
Darwin-Hooker Letters
<p style='text-align: justify;'>The translation of Humboldt’s <i>Kosmos</i> [<i>Cosmos</i> (1846–58)] is delayed.</p><p style='text-align: justify;'>Gives instances of peculiar genera with several good species in very small islands. Scarcity of insects on islands.</p><p style='text-align: justify;'>JDH cannot prove that there is much hybridising, but does not see why there should not be. "Bother variation, development & all such subjects, it is reasoning in a circle I believe after all."</p>