Anno regni Georgii III. regis Magnae Britanniae, Franciae, & Hiberniae, quinto : At the Parliament begun and holden at Westminster, the nineteenth day of May, anno Dom. 1761, in the first year of the reign of Our Sovereign Lord George the Third ... and from thence continued by several prorogations to the tenth day of January, 1765, being the fourth session of the Twelfth Parliament of Great-Britain