Rare Books

Arithmetick, vulgar, decimal, and instrumental. : In three parts. Containing- I Vulgar arithmetick, both in whole numbers and fractions, in a most plain and easie method. II Decimal arithmetick, with the ground and reason thereof, illustrated by divers examples, in all the most usual rules of arithmetick. III Instrumental arithmetick exactly performing all questions of what nature soever in a decimal way, by scales, with much more ease and facility then is possible to be effected either by vulgar or decimal arithmetick, the work of reduction being wholly avoided, and the question performed without the use of fractions: nothing in this kind having been hitherto pnblished [sic] by any. Whereunto is added the construction and use of several tables of interest and annuities, weights and measures, both of our own and other countries