These were added to The Complete Work of Charles Darwin Online between July 30th and August 3rd, 2007:
Osborn, Henry Fairfield. 1928. Charles Darwin. In ibid., Impressions of great naturalists. New York, London: Charles Scribner. Images
Better quality images of Darwin’s theoretical notebooks:
Notebook A: Geology (1837-1839). Images
Notebook B: [Transmutation of species (1837-1838)]. Text Images Text & images [This notebook contains the illustration on the left]
Notebook C: [Transmutation of species (1838.02-1838.07)]. Images
Notebook D: [Transmutation of species (1838.07.15-1838.10.02)]. Images
Notebook E: [Transmutation of species (1838-1839)] Images
Notebook M: [Metaphysics on morals and speculations on expression (1838)]. Images
Notebook N: [Metaphysics and expression (1838-1839)]. Images
Notebook A: Geology (1837-1839). Images
Notebook B: [Transmutation of species (1837-1838)]. Text Images Text & images [This notebook contains the illustration on the left]
Notebook C: [Transmutation of species (1838.02-1838.07)]. Images
Notebook D: [Transmutation of species (1838.07.15-1838.10.02)]. Images
Notebook E: [Transmutation of species (1838-1839)] Images
Notebook M: [Metaphysics on morals and speculations on expression (1838)]. Images
Notebook N: [Metaphysics and expression (1838-1839)]. Images
Darwin, C. R. ‘The position of the bones of Mastodon (?) at Port St Julian is of interest’ Text Images Text & images (Contains Darwin’s earliest known reference to ‘the gradual birth & death of species’)
Sulivan, N. A. 1951. Management of Ships Under Sail. The mariner’s Mirror 37: 243-245. Text
Pearson, Karl. 1914. Darwin Portraits & Ancestry. In The Life, Letters and Labours of Francis Galton. Cambridge: Cambridge University Press, Appendix. Images (Reproduced from http://galton.org/)
Lewes, George Henry. 1856. Hereditary influence, animal and human. Westminster Review 66 (July): 135-62. Images (Images provided by John S. Wilkins)