I am frequently asked for permission to use portions of PC-LEARN 
       as tutorial or reference material for public posting on BBS 
       systems. Permission is hereby granted for BBS distribution. If 
       you wish to use articles from PC-LEARN for educational purposes, 
       my request is that the following message be posted at the 
       BEGINNING and END of section(s) of PC-LEARN text which are used 
       on a public BBS: 
       
       This text is reproduced with permission of the author of the PC-
       LEARN tutorial for beginners. For a registered copy of this 
       extensive disk tutorial send a $25 registration fee to: Seattle 
       Scientific Photography, PO Box 1506, Mercer Island, WA 98040. 
       Two bonus disks will be sent plus the latest PC-LEARN update. 
       PC-LEARN is shareware!