In this 1801 publication, French zoologist Lamarck (1744-1829) presented his classification system for invertebrates, dividing them into seven classes based on their natural characteristics. The work also includes Lamarck’s theory…

In 1793, French naturalist Jean-Baptiste Lamarck (1744-1829) became professor of invertebrate zoology at the Museum National d'Histoire Naturelle in Paris. He set about the huge task of classifying this neglected…