This file describes the other files in the 02issue04 directory (Issue 4, 2002, of The Cryptogram; i.e., Jul/Aug 2002 Computer Column). In the computer.column directory at this site, I have now placed a cumulative index of all the Computer Column program code at this site, keyed by the issue in which it appeared. This index file, compcol.txt, has been updated and the new version is also in the 02issu04.zip file mentioned below. The file routes.bas contains the code from the Jul/Aug 2002 Computer Column. As described in the Column, it displays 48 standard routes and their names. Much of the code in this program will be used in a later program to diagnose route transpositions. The file 02issu04.zip contains the files in this directory. It also contains the index of Computer Column files at this site, indexed by the year in which they appeared. All text files in the directory 02issue04, and in 02issu04.zip, are in MsDos text format. Most other directories were copied from the CDB; their text files were in Unix text format. See their YYNNindx.txt files for information about how convert Unix text format to MsDos format.