London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 111
96 Retrospective Criticism. more remote. Therefore, the space b b, from whichwe are distant 90 ft., appears greater than the spacec cthe 37 … from which we are distant 100 ft. Therefore,parallel lines b c, b c, Sec, appear to converge.Similarly, perpendiculars appear to converge; but theirapparent convergence is so excessively small, that itescapes the eye, until they subtend a greater angle than60°; and, for all practical purposes, may…
Architecture
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