South end of Building C as cleared ... north 2536 Horizontal (normal) ... 21 May 1938
Mixed ... H.Α. Thompson ... 2348 2545 ... 1938
Exposing South End of Building C. Fill ... Ζ-13 2536, 2537 Ζ 1627 P 13305 Ζ 1748 IL 1122 Ζ 1749 IL 1123 Ζ:1938.0526:16 Ζ:1938.0526:17 N 19653 Lot Ζ 598 H 12:1 XIV-20 ... 26 May 1938