Rare Books

The ground of arts· : Teaching the perfect worke and practise of arithmeticke, both in whole numbers and fractions, after a more easie and exact forme then in former time hath beene set forth: made by M. Robert Record D. in Physick. Afterward, augmented by Mr. Iohn Dee. And since enlarged with a third part of rules of practise, abridged into a briefer method then hitherto hath beene published, with diuers necessary rules incident to the trade of merchandise: with tables of the valuation of all coynes, as they are currant at this present time: by Iohm [sic] Mellis. And now diligently perused, corrected, illustrated and enlarged ... with the true value of annuities ... first calculated by R.C. but corrected, and the latter diligently calculated by Robert Hartwell, philomathemat