New logarithmes : the first inuention whereof, was, by the honourable Lo. Iohn Nepair, Baron of Marchiston, and printed at Edinburg in Scotland, anno 1614, in whose vse was and is required the knowledge of algebraicall addition and substraction, according to + and - : these being extracted from and out of them (they being first ouer seene, corrected, and amended) require not at all any skill in algebra, or cossike numbers, but may be vsed by euery one that can onely adde and substract ... / - Speidell, John, (... to bee [solde at his] dwelling house in the Fields ...,, 1619)