§15§Volume 13 is the second improved and corrected edition of Schelling's first main work on the philosophy of nature. Schelling gave it a new subtitle 'Als Einleitung in das Studium dieser Wissenschaft' (As an Introduction to the Study of This Science), i.e. the philosophy of nature. Further to the edition in volume 5, this volume contains all additions and other versions of the second edition (whose known printings have been collated). A new editorial report and new explanatory annotations enhance the accessibility of those additions significant for identity philosophy.
