Baschet and d’Ancona both carry on what Barthold had begun; other investigators, in France, Italy and Germany, have followed them; and two things are now certain, first, that Casanova himself wrote the Memoirs published under his name, though not textually in the precise form in which we have them; and, second, that as their veracity becomes more and more evident as they are confronted with more and more independent witnesses, it is only fair to suppose that they are equally truthful where the facts are such as could only have been known to Casanova himself. II For more than two-thirds of a century it has been known that Casanova spent the last fourteen years of his life at Dux, that he wrote his Memoirs there, and that he died there. During all this time people have been discussing the authenticity and the truthfulness of the Memoirs, they have been searching for information about Casanova in various directions, and yet hardly any one has ever taken the trouble, or obtained the permission, to make a careful examination in precisely the one place where information was most likely to be found. The very existence of the manuscripts at Dux was known only to a few, and to most of these only on hearsay; and thus the singular good fortune was reserved for me, on my visit to Count Waldstein in September 1899, to be the first to discover the most interesting things contained in these manuscripts. M. Octave Uzanne, though he had not himself visited Dux, had indeed procured copies of some of the manuscripts, a few of which were published by him in Le Livre, in 1887 and 1889. But with the death of Le Livre in 1889 the ‘Casanova inedit’ came to an end, and has never, so far as I know, been continued elsewhere. Beyond the publication of these fragments, nothing has been done with the manuscripts at Dux, nor has an account of them ever been given by any one who has been allowed to examine them.