Darwin-Hooker Letters : Letter from C. R. Darwin to J. D. Hooker 5 June [1857]
Darwin, Charles Robert
Darwin-Hooker Letters
<p style='text-align: justify;'>Royal Society medals.</p><p style='text-align: justify;'>Correlation of variability and abnormal development is G. R. Waterhouse’s law. Relation of this law to polymorphism.</p><p style='text-align: justify;'>Colouring and marks of ancestral horse deduced from facts observed in pigeons.</p>