Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker 10 April [1858]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>Asa Gray’s criticism of Buckle and his comments on large and small genera.</p><p style='text-align: justify;'>CD suspects glacial epoch immensely long. Rates of organic change too variable to make them a good measure of geological time.</p><p style='text-align: justify;'>Bees’ cells are a difficulty for theory.</p>