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Iohnsons Arithmatick : in 2. bookes the first, of vulgare arithma: with diuers briefe and easye rules: to worke all the first 4. partes of arithmatick in whole numbers and fractions by the author newly invented the second, of decimall arithmatick wherby all fractionall operations are wrought, in whole numbers, in marchants accomptes without reduction; with interest, and annuityes
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Speculum nauticum. : A looking glasse for sea-men: wherein they may behold a small instrument called the plain scale: wherby all questions nauticall, and propositions astronomicall are very easily and demonstratively wrought. Published for the use and benefit of such as will make good use of it
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