Inhalt: A NEW YORK TIMES NOTABLE BOOK"[An] extraordinarily wide-ranging and engaging book [about] the men who shaped the work of Charles Darwin . . . a book that enriches our understanding of how the struggle to think new thoughts is shared across time and space and people."--The Sunday Telegraph (London)Christmas, 1859. Just one month after the publication of On the Origin of Species, Charles Darwin received an unsettling letter. He had expected criticism; in fact, letters were arriving daily, most expressing outrage and accusations of heresy. But this letter was different. It accused him of failing to acknowledge his predecessors, of taking credit for a theory that had already been discovered by others. Darwin realized that he had made an error in omitting from Origin of Species any mention of his intellectual forebears. Yet when he tried to trace all of the natural philosophers who had laid the groundwork for his theory, he...