Out of the diverse traditions of medical humanism, classical philology, and natural philosophy, Renaissance naturalists created a new science devoted to discovering and describing plants and animals. Drawing on published natural histories, manuscript correspondence, garden plans, travelogues, watercolors, and drawings, The Science of Describing reconstructs the evolution of this discipline of description through four generations of naturalists. In the late fifteenth and early sixteenth centuries, naturalists focused on understanding ancient and medieval descriptions of the natural world, but by the mid-sixteenth century naturalists turned toward distinguishing and cataloguing new plant and animal species. To do so, they developed new techniques of observing and recording, created botanical gardens and herbaria, and exchanged correspondence and specimens within an international community. By the early seventeenth century, naturalists began the daunting task of sorting through the wealth of information they had accumulated, putting a new emphasis on taxonomy and classification. Illustrated with woodcuts, engravings, and photographs, The Science of Describing is the first broad interpretation of Renaissance natural history in more than a generation and will appeal widely to an interdisciplinary audience.

Perhaps the last great work of the Enlightenment, this landmark in intellectual history is the Marquis de Condorcet's homage to the human future emancipated from its chains and led by the progress of reason and the establishment of liberty. Writing in 1794, while in hiding, under sentence of death from the Jacobins in revolutionary France, Condorcet surveys human history and speculates upon its future. With William Godwin, he is the chief foil of Malthus's Essay on Population. Portrayed by Malthus as an elate and giddy optimist, Condorcet foresees a future of indefinite progress. Freed from ignorance and superstition, he argues that the human race stands on the threshold of epochal progress and limitless improvement. Condorcet defies modernist stereotypes of the right and the left. He is at once precursor of the free market and social democracy. This new edition of the original 1795 English translation, is the only English translation of a work of Condorcet currently in print.