The arte of vulgar arithmeticke both in integers and fractions, deuided into two bookes: whereof the first is called Nomodidactus numerorum, and the second Portus proportionum: with certeine demonstrations, reduced into so plaine and perfect method, as the like hath not hitherto beene published in English. Wherevnto is added a third booke, entituled Musa mercatorum: comprehending all the most necessarie and profitable rules vsed in the trade of merchandise. ... in the forme of a dialogue ... Newly collected, digested, and in some part deuised by a welwiller to the mathematicals - Hylles, Thomas (By Gabriel Simson, dwelling in Fleete-lane, 1600)
Dedication signed: Thomas Hylles. - Identified as STC 13480 on UMI microfilm. - Includes index. - Reproduction of the original in the Henry E. Huntington Library and Art Gallery. - STC (2nd ed.), 14040.7. - Sometimes attributed to Thomas Hill. - The first leaf is blank except for signature-mark "A"