apprecier ce savant si estimable par la profondeur et la variete de
ses connaissances, si precieux a sa famille et a ses amis par la
purete et la simplicite de ses moeurs, en qui la vertu etait devenue
une habitude et la bienfaisance un besoin." This work has never
appeared and M. Tourneux thinks that nothing of it was found among
M. Walferdin's papers. [2:2] In 1834 Mr. James Watson published
in an English translation of the _Systeme de la Nature_,
_A Short Sketch of the Life and the Writings of Baron d'Holbach_
by Mr. Julian Hibbert, compiled especially for that edition from
Saint Saurin's article in Michaud's _Biographie Universelle_
(Paris, 1817, Vol. XX, pp. 460-467), from Barbier's _Dict. des
ouvrages anonymes_ (Paris, 1822) and from the preface to the Paris
edition of the _Systeme de la Nature_ (4 vols., 18mo, 1821). This
sketch was later published separately (London, 1834, 12mo, pp. 14)
but on account of the author's sudden death it was left unfinished
and is of no value from the point of view of scholarship. Another
attempt to publish something on Holbach was made by Dr. Anthony
C. Middleton of Boston in 1857. In the preface to his translation
to the _Lettres a Eugenia_ he speaks of a "Biographical Memoir of
Baron d'Holbach which I am now preparing for the press." If ever
published at all this _Memoir_ probably came to light in the
_Boston Investigator_, a free-thinking magazine published by
Josiah P. Mendum, 45 Cornhill, Boston, but it is not to be found.
Mention should also be made of the fact that M. Assezat intended
to include in a proposed study of Diderot and the philosophical
movement, a chapter to be devoted to Holbach and his society; but
this work has never appeared. [3:3]

Of the two works bearing Holbach's name as a title, one is a piece
of libellous fiction by Mme. de Genlis, _Les Diners du baron d'Holbach_