This is a partial list of the writings of Charles Darwin, including his main works.
All of his writings are available at The Complete Works of Charles Darwin Online: the Table of Contents provides a complete bibliography of his works, including alternative editions, contributions to books & periodicals, correspondence, life, and a complete catalogue of his manuscripts. This is free to read, but not Public Domain, and includes work still under Copyright. For Public Domain plain text unauthoritative versions of his major works, see Works by Charles Darwin at Project Gutenberg
There is a collected printed edition, the standard for scholarly use: The Works of Charles Darwin, ed. by Paul H Barrett and Richard Broke Freeman. New York University Press, 1987-89. 29 vols. ISBN 0-8147-1796-9 LC
1829–1832. [Records of captured insects, in] Stephens, J. F., Illustrations of British entomology
1835: Extracts from Letters to Henslow (read at a meeting of the Cambridge Philosophical Society on 16 November 1835, with comments by John Stevens Henslow and Adam Sedgwick, and printed for private distribution dated 1 December 1835. Selected remarks had been read by Sedgwick to the Geological Society of London on 18 November 1835, and these were summarised in Proceedings of the Geological Society published in 1836. Further extracts were published in the Entomological Magazine and, with a review, in the Magazine of natural history. A reprint was issued in 1960, again for private distribution)
1836: A LETTER, Containing Remarks on the Moral State of TAHITI, NEW ZEALAND, &c. – BY CAPT. R. FITZROY AND C. DARWIN, ESQ. OF H.M.S. 'Beagle.'
1838-43: Zoology of the Voyage of H.M.S. Beagle: published between 1839 and 1843 in five Parts (and nineteen numbers) by various authors, edited and superintended by Charles Darwin, who contributed sections to two of the Parts:
1838: Part 1 No. 1 Fossil Mammalia, by Richard Owen (Preface and Geological introduction by Darwin)
1838: Part 2 No. 1 Mammalia, by George R. Waterhouse (Geographical introduction and A notice of their habits and ranges by Darwin)
1839: Journal and Remarks (The Voyage of the Beagle)
1842: The Structure and Distribution of Coral Reefs
1844: Geological Observations on the Volcanic Islands visited during the voyage of H.M.S. Beagle
1846: Geological Observations on South America
1849: Geology from A Manual of scientific enquiry; prepared for the use of Her Majesty's Navy: and adapted for travellers in general., John F.W. Herschel ed.
1851: A Monograph of the Sub-class Cirripedia, with Figures of all the Species. The Lepadidae; or, Pedunculated Cirripedes.
1851: A Monograph on the Fossil Lepadidae, or, Pedunculated Cirripedes of Great Britain
1854: A Monograph of the Sub-class Cirripedia, with Figures of all the Species. The Balanidae (or Sessile Cirripedes); the Verrucidae, etc.
1854: A Monograph on the Fossil Balanidæ and Verrucidæ of Great Britain
1858: On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection (Extract from an unpublished Work on Species)
1859: On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life
1862: On the various contrivances by which British and foreign orchids are fertilised by insects
1865: The Movements and Habits of Climbing Plants (Linnean Society paper, published in book form in 1875)
1868: The Variation of Animals and Plants under Domestication
1871: The Descent of Man, and Selection in Relation to Sex
1872: The Expression of the Emotions in Man and Animals
1875: Insectivorous Plants
1876: The Effects of Cross and Self Fertilisation in the Vegetable Kingdom
1877: The Different Forms of Flowers on Plants of the Same Species
1879: "Preface and 'a preliminary notice'" in Ernst Krause's Erasmus Darwin
1880: The Power of Movement in Plants
1881: The Formation of Vegetable Mould through the Action of Worms
1887: Autobiography of Charles Darwin (Edited by his son Francis Darwin)
1958: Autobiography of Charles Darwin (Barlow, unexpurgated)
Correspondence of Charles Darwin
1887: Life and Letters of Charles Darwin, (ed. Francis Darwin)
1903: More Letters of Charles Darwin, (ed. Francis Darwin and A.C. Seward)
Charles Darwin bibliography Wikipedia (Text) CC BY-SA