attended a banquet in Eyre's honour, Darwin wrote to the Lord Chancellor to rectify the error. Then the family got together at the house of Erasmus Alvey Darwin, where William made a disparaging remark about the "Jamaica Committee". A furious Charles shouted that if he felt that way, he "had better go back to Southampton". The next morning Charles entered his son's bedroom and told him that he hadn't slept a wink, his anger had been cruel and he was sorry. Variation under Domestication Before Christmas 1866 Variation was sent to the printers, save for the last chapter. In this, Darwin wanted to overcome the persistent argument of divinely guided variation. He used the analogy of an architect using rocks which had broken off naturally and fallen to the foot of a cliff, asking "Can it be reasonably maintained that the Creator intentionally ordered... that certain fragments should assume certain shapes so that the builder might erect his edifice?" In the same way, breeders or natural selection picked those that happened to be useful from variations arising by "general laws", to improve plants and animals, "man included". Darwin was now openly including man in his theory, and wanted to add a chapter on this but the book was already too "horridly, disgustingly big" and he shortly decided to write a separate "short essay" on ape ancestry, sexual selection and human expression. Murray had to make two volumes of it, and being advised that it was hard going planned only 750 copies, though he later doubled that. Translators were eager to get to work: Carus into German, and Vladimir Kovalevsky into Russian – he was sent Murray's proofs, and successfully beat his publication date so that the earliest edition of Variation was in Russian. During the spring, Darwin tried to find explanations in Sexual Selection for variations in that "eminently domesticated animal", mankind, and for the plumage of birds. As well as drawing on information, he experimented with dyeing pigeons red and trimming the feathers of game-cocks to see if this affected their desirability as a mate. The Duke of Argyll had thrown down a challenge with his book The Reign of Law, which collected criticisms of the Origin and put forward theories of divine design and providential law in a way that struck Darwin as "very well written, very interesting, honest, & clever & very arrogant". It made a particular