Holbach to Hume, Mar. 16, 1766.
Holbach to Hume, July 7, 1766.
Holbach to Hume, Aug. 18, 1766.
Holbach to Hume, Sept. 7, 1766.

These were printed in Hume's _Private Correspondence_, London, 1820,
pp. 252-263, and deal largely with Hume's quarrel with Rousseau.

Holbach to Garrick, June 16, 1765.
Holbach to Garrick, Feb. 9, 1766.

These two letters are in manuscript in Lansdowne House,
Coll. Forster, and were published by F. A. Hedgcock,
_David Garrick et ses amis francais_. Paris, 1911, pp. 251-253.

Holbach to Wilkes, Aug., 1746, 9 (Brit. Mus. Mss., Vol. 30867, p. 14).
Holbach to Wilkes, Dec. 10, 1746 (Brit. Mus. Mss., Vol. 30867, p. 18).
Holbach to Wilkes, May 22, 1766 (Brit. Mus. Mss., Vol. 30869, p. 39)
Holbach to Wilkes, Nov. 9, 1766 (Brit. Mus. Mss., Vol. 30869, p. 81).
Holbach to Wilkes, Dec. 10, 1767 (Brit. Mus. Mss., Vol. 30869, p. 173).
Holbach to Wilkes, July 17, 1768 (Brit. Mus. Mss., Vol. 30870, p. 59).
Holbach to Wilkes, Mar. 19, 1770 (Brit. Mus. Mss., Vol. 30871, p. 16).
Holbach to Wilkes, April 27, 1775, 9 (Wilkes, _Correspondence_,
London, 1804, Vol. IV, p. 176).

The first seven of these letters are published for the first time
in the present volume, pp. 6-11 and pp. 75-80.

Holbach to Galiani, Aug. 11, 1769 (_Critica_, Vol. I, pp. 488 sq.).