ENCLOSED ENRICHMENT--FULLY ENRICHED PANELS FOR SURFACE ENRICHMENT
Rule 7d. _The contours of fully enriched panels should parallel the outlines of the primary mass and repeat its proportions._
Rule 7e. _The points of concentration for a fully enriched square panel may be in its center or in its outer margin._
Rule 7f. _The points of concentration for a fully enriched vertical panel should be in the upper portion of the panel._
Rule 7g. _The fully enriched panel and its contents should be designed in unified relation to the structural outlines, with the center line of the panel coinciding with the inceptive axis of the structure._
FREE ORNAMENT FOR PARTLY ENRICHED SURFACES
Rule 8a. _Free ornament for partly or fully enriched surfaces should be based and centered upon an inceptive axis of the structure._
Rule 8b. _Free ornament should be related and subordinated to the structural surfaces._
Rule 8c. _Points of concentration in free enrichment of vertically placed masses are usually located in and around the inceptive axis and above or below the geometric center of the design._
Rule 9a. _Surface enrichment of clay must be so designed as to be able to withstand the action of heat to which all ware must be submitted._
Rule 9b. _Incised, pierced, and modeled decoration in clay should be simple and bold and thus adapted to the character of the material._
Rule 9c. _A border should not be located at the point of greatest curvature in the contour of a cylindrical form. The contour curve is of sufficient interest in itself at that point._
SURFACE ENRICHMENT OF BASE AND PRECIOUS METALS FOR SMALL MASSES
Rule 10a. _Designs in precious metals should call for the minimum amount of metal necessary to express the idea of the designer for two reasons: (1) good taste; (2) economy of material._
Rule 10b. _Contour and surface enrichment should never appear to compete for attention in the same design._
Rule 10c. _Parts of a design differing in function should differ in appearance but be co-ordinated with the entire design._
Rule 10d. _Surface enrichment should at some point parallel the contours of both primary mass and point of concentration especially whenever the latter is a stone or enamel._
Rule 10e. _In the presence of either stone or enamel as a point of concentration, surface enrichment should be regarded as an unobtrusive setting, or background._