Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 68
The H trace,ht, has crossed to the right of vt. This case is shown inFig. 48 b. The student should analyze this latter case as we did abovefor Fig. 48 a. He should then try to draw a line passing fromthe second, through the first and thence into the fourthquadrant; and as many other cases as may… … Fig. 48 b 52 DESCRIPTIVE GEOMETRY [IV, § 44 I
Geometry, Descriptive
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