Each volume has a different titlepage describing its own contents and (except vol.8) giving its volume number. Only vol.1 has a collective titlepage, dated 1749. The works in vols. 1-4 are of the third edition and vols.1-3 are dated 1748.
A prospectus for this work was published in 1747, as 'proposals for printing by subscription, the philosophical and theological works .. ', and another in 1748.
Vol.VII is misnumbered VI, and there are indexes to all 12 vols. in vol.12.
Reproduction of original from the British Library.