Voster, Elias.

Voster elimatus , Or The rules of arithmetick digested and explained, in a mercantile course of questions and examples pertinent to each rule, and adapted to the commerce of Ireland. Design'd for the ease and assistance of the sedulous tutor, in the exercise and instruction of his aspiring pupils. The latter part collected chiefly from Walkingame's tutor's assistant, in five parts, By the editor.