Theory and analysis of ornament applied to the work of elementary and technical schools (1892)
Schauermann, François Louis · London, S. Low, Marston · leaf 131
Theory and Analysis of Ornament, 119 parts, and these correspond by turning. The arcs, handles, ovals, straight angulations, isosceles triangles, &c., are even forms, and the simplest of all. Generally, symmetry separates the object into two parts, places in the middle the unique parts, besides… … 3. Diagonal forms. A diagonal form is con- structed by reference to a point : it has its halves placed in the inverted way in proportion to one of the straight lines, which pass by the centre or sym- metrical point. In general, a diagonal form is Fig. '78. determined by the doubling of an uneven or…
Decoration and ornament
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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