Classification of Structural Clay Forms
Different clay forms require different modes of treatment. To simplify these treatments will now be our problem. It has been found convenient to form four divisions based upon the general geometric shape of the ware. The first, [Plate 47], includes rectangular and square areas; the second, [Plate 48], shallow and circular forms; the third, [Plate 49], low cylindrical forms; and the fourth, [Plate 50], high cylindrical forms. The first three divisions have distinct modes of design treatment, while the fourth interlocks to a considerable extent with the third method. We shall now consider each plate with reference to its use and possible forms of enrichment. For the sake of brevity, the results have been condensed into tabulated forms.
Plate 49
Each geometric form or type on these plates has not only distinctive methods of design treatment but characteristic locations for placing the design as well. These places or zones of enrichment have been indicated in the following tabulated forms by the letters in parentheses. There are a number of zones for each plate. For example, [Plate 47] has its distinctive problems as tiles, weights, etc., and five characteristic zones of enrichment described on [pages 153]-[155] and indicated by the letters A, B, C, D, E, followed by a brief description of that zone. Each zone is still further analyzed into its accompanying type of design, inceptive axis, point of concentration, and illustrations. Each plate has the proper zone of enrichment immediately following the figure number and in turn followed by the process number.
Square and Rectangular Areas, Plate 47
Marginal Enrichment
Problems: Tiles for tea and coffee pots, paper weights, window boxes; architectural tiles for floors, and fire places.
(A) Zone of Enrichment: In the margin.
Reason for Choice: Central area to be devoted to zone of service requiring simplicity in design.
Type of Design: Bands or borders.
Inceptive Axis: For corners; the bisector of the angle.
Points of Concentration: The corners and, if desired, at equal intervals between the corners.
Illustrations: [Figures 283], [284], [286], [287], [288].
Center Enrichment