The ready reckoner, or The trader's sure guide, adapted to the use of all who deal by wholesale or retail : exhibiting at one view, the amount or value of any number of goods or merchandize, from 1 up to 10,000, at the various prices, from 1 farthing to 1 pound. To which are prefixed, tables of interest at 5,6, and 7 per cent. A table shewing the weight and value of gold and silver, as they now pass in Pennsylvania and New-York. : Also a table shewing the value of continental money, as fixed by an act of the general assemblies of Pennsylvania and Maryland.