02266nam 2200421 n 450 99639570870331620221108045410.0(CKB)4330000000321415(EEBO)2240921735(UnM)99856013(EXLCZ)99433000000032141519920917d1633 uy |engurbn||||a|bb|The circles of proportion and the horizontal instrument[electronic resource] The former shewing the maner how to work proportions both simple and compound: and the ready and easy resolving of quæstions both in arithmetic, geometrie, & astronomie: and is newly increased with an additament for navigation. All which rules may also be wrought with the penne by arithmetic, and the canon of triangles. The later teaching how to work most quæstions, which may be performed by the globe: and to delineat dialls upon any kind of plaine. Invented, and written in latine by W.O. Translated into English, and set out for the public benefit, by William ForsterLondon Printed by Augustine Mathewes, and are to bee sold by Nic: Bourne at the Royall Exchange1633[8], 152, [8] p., [2] leaves of plates ill. (woodcuts)W.O. = William Oughtred.Another issue, with cancel letterpress title page, of STC 18899: The circle of proportion, and the horizontall instrument.Translated by William Forster from the original Latin.The "additament" also published separately as STC 18899c: An addition unto the use of the circles of proportion.Reproduction of the original in the Bodleian Library.eebo-0014Mathematical instrumentsEarly works to 1800NavigationEarly works to 1800Mathematical instrumentsNavigationOughtred William1575-1660.744583Forster Williammathematician.1012104Oughtred William1575-1660.autCu-RivESCu-RivESCStRLINWaOLNBOOK996395708703316The circles of proportion and the horizontal instrument2348013UNISA