PREFACE TO VOLUME III

IN this volume the last part of the translation to be published takes its place immediately before the first part to be published, the Parva Naturalia Little Physical Treatises, which appeared in 1908. I must ask the indulgence of readers for the long interval that has elapsed between the two. The Great War, the death of some of the contributors before their translations were completed, the necessity for a considerable interchange of views between translators and editor,—these have been among the causes of delay. I hope that by delay something has been gained as well as something lost; I am conscious of realizing much more fully now than I did in 1908 the nature of the problem of translating Aristotle, and I hope that the later contributors have learned something from the work of their predecessors.
In the series as a whole, indexes have been placed sometimes after single works, sometimes after groups of works. It may help readers in the use of these if they are told exactly where to look for them. Indexes will be found as follows:
In vols. IV, VI, VII, VIII at the end.
In vol. I after Analytica Posteriora Posterior Analytics; after De Sophisticis Elenchis On Sophistical Refutations.
In vol. II after Physica Physics; after De Caelo On the Heavens; after De Generatione et Corruptione On Generation and Corruption.
In vol. III after Meteorologica Meteorology; after De Anima On the Soul; after Parva Naturalia; after De Mundo On the World; after De Spiritu On Breath.
In vol. V after De Partibus Animalium On the Parts of Animals; after De Incessu Animalium On the Progression of Animals; after De Generatione Animalium On the Generation of Animals.
In vol. IX after Ethica Nicomachea Nicomachean Ethics; after Magna Moralia Great Ethics; after De Virtutibus et Vitiis On Virtues and Vices.
In vol. X after Politica Politics; after Oeconomica Economics; after Atheniensium Respublica Constitution of the Athenians.
In vol. XI after Rhetorica Rhetoric; after Rhetorica ad Alexandrum Rhetoric to Alexander; after Poetica Poetics.

I have to thank Mr. George Brown, Lecturer in Logic in the University of Glasgow, for kindly reading the proof-sheets of the De Anima, as he did those of the Physics. And