Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker 28 September [1856]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>Will send MS on one point of geographical distribution. It is "of infinite importance" that JDH see it, for CD has never felt such difficulty in deciding what to do.</p><p style='text-align: justify;'>Wants capsules of aquatic plants, to float in sea-water.</p>