Portfolio 25 By laurencvit Apr 20, 1735 Linnaeus Publishes Systima Naturae Apr 20, 1738 Linnaeus establishes a medical practice Apr 20, 1749 Comte De Buffon publishes L'histoire Naturelle Apr 20, 1777 Comte De Buffon- Buffon's needle Apr 20, 1778 Lamarck publishes Flore Francaise Apr 20, 1795 Wallace publishes his theories on the geology of earth Apr 20, 1798 Malthus publishes an article on the Principle of Population Apr 20, 1802 Lamarck publishes Hydroeology Apr 20, 1805 Malthus becomes a professor Apr 20, 1812 Cuvier publishes the Recherches sur tes Ossemens fossiles des Quadrupedes Apr 20, 1827 Cuvier publishes an essay on the theory of Earth Apr 20, 1830 Lyell publishes the first volume of Principles of Geology Apr 20, 1831 Darwin goes on the Beagle Voyage Apr 20, 1858 Wallace publishes a paper on natural selection Apr 20, 1859 Darwin publishes Natural Selection Apr 20, 1863 Lyell publishes the Geological evidence of the Antiality of Man Apr 20, 1865 Mendel's pea plant work was published Apr 20, 1868 Mendel's ideas were pubically squashed Apr 20, 1883 Weissman declares his belief that inheritance occurs in germ cells Apr 20, 1892 Weismann contributes to the germ theory findings