PREFACE.

Fragments, etc. On the other hand, nothing is easier than to provide advance references to the Works of Descartes: we will simply reproduce, later on, the pagination of each editio princeps original: "édition princeps"; Latin for the first printed edition of a book., which is the same pagination Descartes uses when he refers to his own books in his Letters. The two publications of the Correspondence and the Works will therefore be successive, and not simultaneous.

A chronological order is essential. No doubt readers would be very pleased to find all the letters exchanged...

Messrs.

Ravaisson, President of the Academy of Moral and Political Sciences.
Th. Ribot, Professor at the Collège de France A prestigious research institution in Paris where lectures are free and open to the public., Director of the Philosophical Review.
Séailles, Lecturer at the Sorbonne The historic seat of the University of Paris..
† J. Simon, of the French Academy The Académie française, the principal body for matters pertaining to the French language., Permanent Secretary of the Academy of Moral and Political Sciences.
Sully-Prudhomme, of the French Academy.
J. Tannery, Assistant Director of the École Normale Supérieure One of France's most prestigious "grandes écoles," specializing in training professors and researchers..
† Tisserand, of the Academy of Sciences, Director of the Observatory.
Vacherot, of the Institute The Institut de France, a prestigious umbrella organization for France's five national academies..

GERMANY, AUSTRIA-HUNGARY, ALSACE-LORRAINE.

B. Erdmann, Professor at the University of Halle.
R. Eucken, Professor at the University of Jena.
R. Falkenberg, Director of the Journal of Philosophy and Philosophical Criticism, Professor at the University of Erlangen.
Gizicki, Privat-docent A German academic title for a person authorized to teach at a university but who does not yet hold a full professorial chair. at the University of Berlin.
Ed. von Hartmann.
Kuno Fischer, Professor at the University of Heidelberg.
Natorp, Professor at the University of Marburg, Director of the Archive for Systematic Philosophy.
Paulsen, Professor at the University of Berlin.
Riehl, Professor at the University of Freiburg.
Sigwart, Professor at the University of Tübingen.
Weissmann, Professor at the University of Freiburg.
Weyr, Professor at the University of Prague.
Windelband, Professor at the University of Strasbourg.
Wundt, Professor at the University of Leipzig, Director of Philosophical Studies.
Zeller, Professor at the University of Berlin.