Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker [21 October 1866]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>Introduces Ernst Haeckel.</p><p style='text-align: justify;'>Lyell sent same chapters to CD, who thinks them very good but is not convinced that changes of land and water will do all he thinks.</p>