Several problems with Hegel’s conception of the organism in the Encyclopaedia are due to the separation between individual life in Nature and the universal life of the Concept. This discontinuity between ontogenesis and phylogenesis in his dialectics of organic life will be studied here by following his presentation of physiological development, especially reproduction, and by reconstructing the historical model he criticizes—Leibniz’s organic machines and their development in Buffon’s Natural History—a model that was also of crucial importance to the philosophy of (...) nature of Schelling and his followers. (shrink)