Data for model row 19, columns 3 through 19 (lines 409 through 424) are missing and are the same as model row 2, columns 3 through 19 (lines 103 through 118). Data for all of model row 20 (lines 425 through 442) are missing, and are the same as model rowl (lines 83 through 100). The correct entries for missing lines 409 through 442 are listed below. (2). APPENDIX 4, Page 48-In "ARRAY SHOWING STATUS OF TOPMOST CELLS": Entries for model column 6 of rows 5, 6, and 15 should be 66 not 77.