This is possibly part of the MS referred to in Ward's "The Lives of the Professors of Gresham College": "These, which follow, are in the hands of Mr Jones. 1... 2... 3. And English treatise of common arithmetic, folio. In this are contained not only the vulgar rules, but also the manner of extracting the square and cube roots, with the rules of proportion, allegation, arithmetical and geometrical progression."