Smith, David Eugene, 1860-1944 · Boston, New York [etc.] Ginn and Company · leaf 250
Surveying Instrument of the Eighteenth Century N. Bions Traite de la construction . . . des instrumens de mathema-tique, The Hague, 1723 Finaeus, on this page, fshows how it was usedfor altitudes, and theone reproduced on page2-10 shows how it wasused for measuringdepths. A similar instru-ment from… … The Quadrant used for Altitudes Finaeuss De re et praxi geometrica,Paris, 1556 tion from De Judaeis, which also appears on page 241. 240 THE TEACHIXG OF GEOMETRY O R O N T I I F I N E I D E L P H Exemplum. Alia eMdem obferuarionisdcmonftratio. Notandum. Sccundus mo. dusmetKndi profunda.prr…
Geometry
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