Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 430
Fig. 205. HORIZONTAL PROJECTION 409 sponding to a and & of Z (Prob. 162). Draw lines from tliesepoints at right angles to Z till they meet perpendiculars drawnfrom the points a and h, perpendicular to Z, in the points e and/.Draw a line through e and /, which is the line of…
Geometrical drawing
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