Plate 2: Column 1 (A): a, d, g, j, m, p, s, "touching vugs" subparallel to bedding; column 2 (B): b, e, h, k, n, q, t, "touching vugs" oblique to bedding; column 3 (C): c, f, i, l, o, r, u, residual primary intergranular pores. Rows 1-2: a-f, Lott 19#4 4918'; row 3: g-i,, Lott 19#4 4926.9'; row 4: j-l, Lott 19#4 4937.5'; row 5: m-o, Lott 19#4 4940.8'; row 6: p-r, Lott 19#4 4957.5'; row 7: s-u, Lott 19#5 4958'.