Brittain's scheme to make a new coin of gold and silver to give in exchange for paper-money and South Sea stock : To which is added a proposal that will enable the government to take into the Exchequer all contracts and mortgages that have land security engag'd for payment, and the Crown to lend out money to the subject upon that security at four per cent. interest. By Charles Povey, gent. author of the treatise intit'led, an inquiry into the miscarriages of the four last years reign.