 Complete the following phrase:  In the aftermath of arrests at a London Corresponding Society meeting at Chalk Farm, treason charges were laid against Thomas Hardy, John Thelwall and John Horne Tooke among others; Losh, Frend and associates John Cartwright, Godfrey Higgins, William Maxwell 17601834, Gilbert Wakefield and the publishers Joseph Johnson and J. S. Jordan formed a committee to raise defence funds. When Joseph Priestley emigrated to America that year, Losh, with Frend, Higgins and Tweddell presented him with an inkstand. At this period he also involved himself with the investigations of Edward Christian into the circumstances of the 