Charles Darwin: his life told in an autobiographical chapter, and in a selected series of his published letters. Edited by his son, Francis Darwin Q Science
Darwinism stated by Darwin himself; characteristic passages from the writings of Charles Darwin. Selected and arranged by Nathan Sheppard Q Science
The formation of vegetable mould, through the action of worms, with observations on their habits Q Science
Journal of researches into the natural history and geology of the countries visited during the voyage of H.M.S. Beagle round the world : under the command of Capt. Fitz Roy. Q Science
