[1:1] Diderot, _Oeuvres_, ed. Assezat et Tourneaux, Vol. XX, p. 28.

[2:2] Grimm, _Corr. Lit._, Vol. XV, p. 421.

[3:3] Diderot, _Oeuvres_, Vol. XX, p. 95.

[3:4] Among the most important are Damiron J. P., _Memoires pour
servir a l'histoire de la philosophie au dix-huitieme siecle_ (Paris,
1858, 3 vols., 8vo); Lange, _Geschichte des Materialismus_ (Eng. tr.,
Boston, 1877); Morley, _Diderot and the Encyclopedists_ (N. Y., 1891,
2 vols., 12mo); Plekhanow, G., _Beitraege zur Geschichte des Materialismus_
(Stuttgart, 1896) ; Hancock, A. E., _The French Revolution and the
English Poets_ (N. Y., 1899); Tallentyre, _The Friends of Voltaire_
(London, 1906); Fabre, _Les Peres de la Revolution_ (Paris, 1910), etc.

[5:5] Confessions, _Oeuvres_, Vol. XXIV, p. 338.

[5:6] Bib. Nat. mss. _Pieces originales,_ 1529, d'Holbach, 34, 861.

[6:7] Carlyle, Rev. Dr. A., _Autobiography_, ed. Burton, Boston, 1861,
p. 137 sq. for Holbach's English friends mentioned in his letters to
Wilkes.

[12:9] See Chap. II and Bibliography, Pt. I, for these and his other works.

[12:10] Grimm _Cor. Lit._, Vol. II, p. 283.

[12:11] _Gazette de France_, Aug. 10, 1754.