Which botanist did Darwin begin a correspondence with about his theories? <SEP> Darwin continued to research and extensively revise his theory while focusing on his main work of publishing the scientific results of the Beagle voyage. He tentatively wrote of his ideas to Lyell in January 1842; then in June he roughed out a 35-page "Pencil Sketch" of his theory. Darwin began correspondence about his theorising with the botanist Joseph Dalton Hooker in January 1844, and by July had rounded out his "sketch" into a 230-page "Essay", to be expanded with his research results and published if he died prematurely.
Which botanist did Darwin begin a correspondence with about her theories? <SEP> Darwin continued to research and extensively revise her theory while focusing on her main work of publishing the scientific results of the Beagle voyage. She tentatively wrote of her ideas to Lyell in January 1842; then in June she roughed out a 35-page "Pencil Sketch" of her theory. Darwin began correspondence about her theorising with the botanist Joseph Dalton Hooker in January 1844, and by July had rounded out her "sketch" into a 230-page "Essay", to be expanded with her research results and published if she died prematurely.