Augsburg, De Resco Leo, b. 1859 · Boston, New York, Educational Pub. Co · leaf 103
when below, above, or in front of theeye neither face can be seen, as shown in Fig. 26 ; (3) when eitherface is in line with the eye, as in Fig. 25, the end is representedby a vertical line ; (4) that the point opposite the eye (center ofvision) determines the drawing of the horizontal cylinder.… … ^29 30 Ji The Horizontal Receding Cylinder. Use for a model a common l)akinij })()wder can. Remove thecover, and hold it in the position of Fig. 30, close one eye, and ob-serve that the farther end of the cylinder is represented by a smallercircle than the nearer end. This is because it is farther…
Drawing
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Cosmographia in qvatvor libros distribvta summo ordine, miraqve facilitate, ac breuitate ad magnam Ptolemæi mathematicam constructionem, ad vniuersamque astrologiam institutens. Francisco Barocio ... avtore. Cum præfatione eiusdem autoris, in qua perfecta quidem astrologiæ diuisio, & enarratio autorum illustrium, & voluminum ab eis conscriptorum in singulis astrologiæ partibus habetur: Joannis de Sacrobosco verò 84 errores, et alij permulti suorum expositorum, & sectatorum ostenduntur. rationibusq[uam] redarguuntur. Præcesserunt etiam quædam communia mathematica, necnon arithmetica, & geometrica principia, nonnullæq[uam] propositiones, de quibus in toto opere sæpe fit mentio: ac demum locupletissimus index eorum, quæ ipsa Cosmographia continentur .. (1585)](https://img.insideoutlibrary.com/img/200/ia-cosmographiainqv00baro-123-43.webp)
