Charles Darwin's notebooks, 1836-1844 : geology, transmutation of species, metaphysical enquiries / transcribed and edited by Paul H. Barrett ... [et al.].
Charles Darwin's notebooks, 1836-1844 : geology, transmutation of species, metaphysical enquiries / transcribed and edited by Paul H. Barrett ... [et al.].
Red notebook, 1836-1837 / transcribed and edited by Sandra HerbertGeology. Notebook A, 1837-1839 / transcribed and edited by Sandra Herbert. Glen Roy ...