Second article in Ralph Griswold's series on block substitution, a method of generating cellular patterns by repeatedly replacing each black or white cell with a small block of cells. It covers more complex and large initial patterns (including a 34 x 35 beetle motif), substitution blocks of non-square dimensions, rules with special effects such as color reversal, magnification and line extension, and the use of more than two colors. Illustrated with black-and-white and color pattern examples; no weaving drafts are included.