1
by Helvétius
Published 1774

2
by Helvétius
Published 1759
printed for the translator; and sold by Mr. Dodsley and Co. in Pall-Mall; Mess. Millar, Nourse, and Tonson, in the Strand; Mess. Hitch and Hawes, in Pater-Noster Row; Mr. Fletcher, at Oxford; Mr. Merril, Cambridge; and J. Coote, in Pater-Noster-Row

3
by Helvétius
Published 1768
Chez Durand

4
by Helvétius
Published 1758
Chez Durand

5
by Helvétius
Published 1759
[Printed for the translator, and sold by Mr. Dodsley and Co. [and 8 others]

6
by Helvétius
Published 1769
Chez Durand