This is a much-needed reissue of the standard English translation of Hegel'sPhilosophy of Nature, originally published in 1970. ThePhilosophy of Natureis the second part of Hegel'sEncyclopaedia of the Philosophical Sciences, all of which is now available in English from OUP (Part I being hisLogic, Part III being hisPhilosophy of Mind). Hegel's aim in this work is to interpret the varied phenomena of Nature from the standpoint of a dialectical logic. Those who still think of Hegel as a merely a priori philosopher will here find abundant evidence that he was keenly interested in and very well informed about empirical science. ThePhilosophy of Natureis integral to his philosophical system and deserves the most serious attention. Students and scholars of Hegel and the history of European philosophy will welcome the availability of this important text, which also includes a translation of Hegel'sZusatzeor lecture notes.