The file you are now reading is 9904INDX.TXT. It lists and describes each file in this directory. The file 99JACCOL.COD contains the source code published in the Jul/Aug 1999 Computer Column of _The Cryptogram_. This source code is not executable as it stands. It must be merged with the May/Jun solver 99MJCCOL.BAS to form a solver which uses statistical aids. Instructions for merging the code are included in the comments of 99JACCOL.COD. 99JACCOL.BAS is the complete program formed by this merging. It is executable using the QBASIC interpreter. The file 99ISSU04.ZIP contains the files in this directory. The .ZIP was created under MS-DOS and the text files are in DOS ascii text format.