Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 153
f the lath will cause the pencil to de-scribe an ellipse. II. By Estab-lishing Points.(1) First method..In Fig. 133, let aband cd be the givenaxes. Construct arectangle ^gh onthese diameters.Divide ao and aeinto the same num-ber of equal partsas shown. Drawdl, d2, etc., andc 1, c 2, etc.… … Fig. 133 VII, § 125] CURVED LINES 137
Geometry, Descriptive
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