A discourse containing a summary of the proceedings of the directors of the Society for Extending the Fisheries and Improving the Sea Coasts of Great Britain [microform] : since the 25th March, 1788 : and some thoughts on the present emigrations from the Highlands / by George Dempster, Esq. one of the directors ; together with some reflections intended to promote the success of the said society, by John Gray, Esq. author of the plan for finally settling the government of Ireland upon constitutional principles, and other political tracts