A History of Genetics. Sturtevant, Alfred H. 1965. First published in 1965, it was brought back into print in 2001 by Cold Spring Harbor Laboratory Press and the Electronic Scholarly Publishing project.
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A Lecture on Mendelism. Drinkwater, H. 1910. London: J. M. Dent & Sons.
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An Essay on the Principle of Population. Malthus, T. 1798.
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Candide. Voltaire. 1759.
PDF typeset file: 557,634 bytes - 104 pages - no figures

Chicago Poems. Sandburg, Carl 1916. New York: Henry Holt and Company
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Essays Upon Heredity. Weismann, August 1889. Oxford at the Clarendon Press
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Facts and Arguments for Darwin. Müller, F. 1869. London: John Murray, Albemarle Street
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Heredity in Relation to Evolution and Animal Breeding. Castle, W. E. 1911. New York: D. Appleton and Company
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Heredity in the Light of Recent Research. Doncaster, L. 1911. Cambridge: University Press
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Heredity. Thomson, J. Arthur. 1908. London: John Murray
This is a PDF image facsimile version of the entire 596-page original first edition.

Inborn Errors of Metabolism, Second Edition. Garrod, Archibald. 1923. London: Henry Frowde and Hodder & Stoughton
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Intracellular Pangenesis. Vries, Hugo de. 1910. Chicago: The Open Court Publishing Co.
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Materials for the Study of Variation. Bateson, William. 1894. London: Macmillan and Company.
This is a full-text PDF image facsimile version of the entire 598-page original first edition.

Mendel's Principles of Heredity: A Defence. Bateson, William. 1902. London: Cambridge University Press.
This is a full-text PDF image facsimile version of the entire 212-page original first edition.

Mendelism, 1st Edition. Punnett, R. C. 1905. Cambridge: Bowes and Bowes
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Mendelism, 2nd Edition. Punnett, R. C. 1907. Cambridge: Bowes and Bowes
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Natural Inheritance. Galton, Francis 1889. London: Macmillan
This is an image facsimile version of the entire 260-page original first edition.

On the Generation of Animals. Aristotle. 350 BC.
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On the Natural Faculties. Galen. 170 AD.
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On the Origin of Species. Darwin, C. 1859. London: John Murray, Albemarle Street.
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On the Parts of Animals. Aristotle. 350 BC.
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Principles of Geology, Vols 1-3. Lyell, Charles 1830. London: John Murray
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Proceedings of the Sixth International Congress of Genetics, Vol. I. Jones, Donald F. (ed) 1932. Austin, Texas: Genetics Society of America
This is an image facsimile version of the entire 396-page original edition.

Recollections of the early days of the genetical society. Crew, F. A. E. 1969. In John Jinks, The Genetical Society - The First Fifty Years, Edinburgh: Oliver and Boyd, pp.9-15.
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The Cell in Development and Inheritance, 2nd Edition Wilson, Edmund B. 1900. New York: The Macmillan Company
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The Development of the Frog's Egg: An Introduction to Experimental Embryology. Morgan, Thomas Hunt 1897. New York: The Macmillan Company
PDF image facsimile file: 46,153,994 bytes bytes - 204 pages - several figures

The Essays. Bacon, Francis. 1601.
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The Germ-Plasm. Weismann, August 1893. New York: Charles Scribner's Sons
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The History of Animals. Aristotle. 350 BC.
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The Law of Heredity, Second Edition. Brooks, W. K. 1883. Baltimore and New York: John Murphy & Co., Publishers.
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The Mechanism of Crossing-over. Muller, Hermann J. 1916. New York: The American Naturalist
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The Mechanism of Mendelian Heredity. Morgan, Thomas H., Sturtevant, A. H., Muller, H. J., and C. B. Bridges 1915. New York: Henry Holt and Company
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The Methods and Scope of Genetics. Bateson, William. 1908. London: Cambridge University Press.
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The Physical Basis of Heredity. Morgan, Thomas H. 1919. Philadelphia: J. B. Lippincott Company
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The Piazza Tales. Melville, Herman. 1856. New York: Dix, Edwards, & Co.
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The Theory of the Gene, Revised and Enlarged Edition. Morgan, Thomas H. 1928. New Haven: Yale University Press
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The Variation of Animals and Plants Under Domestication, Second Edition, Revised (two volumes). Darwin, C. 1883. New York: D. Appleton & Co.
This is a full-text PDF image facsimile version of the entire 473-page volume I and the entire 495-page volume II of the original work.

The Voyage of the Beagle, Second Edition. Darwin, C. 1845. London: John Murray.
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Vestiges of the Natural History of Creation. Anonymous. 1844. London: John Churchill.
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