The great and important discovery of the eighteenth century, and the means of setting right the national affairs : By a great addition of numerous and inestimable useful designs and public improvements, by which the nation is still capable of being infinitely benefited; to which are added addresses to the several different classes of society, pointing out the measures, which they ought to pursue as their respective duties, in redressing public affairs. By George Edwards, Esq. M.D: author of the aggrandisement of Great Britain; of the national perfection of finance; and of the royal regeneration of Great Britain.