File:Elements of plane and solid free-hand geometrical drawing, with lettering; and some elements of geometrical ornamental design, including the principals of harmonic angular ratios, etc. In three parts (14773806401).jpg

Identifier: elementsofplanes00warr (find matches)
Title: Elements of plane and solid free-hand geometrical drawing, with lettering; and some elements of geometrical ornamental design, including the principals of harmonic angular ratios, etc. In three parts ... for draughtsmen and artisans; and teachers and students of industrial and mechanical drawing
Year: 1878 (1870s)
Authors: Warren, S. Edward (Samuel Edward), 1831-1909
Subjects: Geometrical drawing Mechanical drawing
Publisher: New York, J. Wiley & sons
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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CHAPTEK VII. EBOTILINEAE AND CIROULAK COMBINATIONS. Principles. We gain, from observation of ornamental figures, and notablyfrom that entertaining instrument, the kaleidoscope, certainideas, which we will call those of unity, symmetry, and variety,in connection with figures compounded of a greater or lessnumber of simple elements. These ideas, all of which are pleasing, we will now proceedto explain, and illustrate. Unity is that property of a figure by which, although com-posed of parts, its parts are so linked together that it addressesthe mind as .07ie figure, and not as a collection of separatethings. Thns three detached lines are naturally regarded asthree separate things ; but, as combined in a triangle, perfectlyenclosing a space, they are naturally thought of as forming onething, the triangle. So also, with the figures in the kaleido-scope, their regular arrangement around a single central point,gives them unity, so that we think of each as 07ie figure. Stmmetey is single, dou

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