The "BKGCuclc Fonts.sea" file is a self-extracting archive containing different sizes of a color font that can be installed on a Macintosh. Once properly installed, these fonts are available to all applications (programs) and are most useful in conjonction with a sequence editor. I have used the editor in the PAUP package available ($100.00) from Center for Biodiversity Illinois Natural History Survey 607 E. Peabody Dr. Champaign, Illinois 61820 (217) 333-6846 younga@ux1.cso.uiuc.edu but others will do. To install the fonts, copy the "BKGCuclc Fonts.sea" file to your hard disk and double-click on it. The expanded "BKGCuclc Fonts" file will then appear. System 7 users: Drag this file to your system folder, et voila! System 6 and earlier: Use Font/DA Mover to install BKGCuclc Fonts. Start your favorite editor, select a nucleic acid sequence and apply the BKGCuclc Font to it. Assuming that your color monitor properly set up, you should instantly see the difference. Credits: This color font was created by Dr. Mitchell L. Sogin, Center for Molecular Evolution, Marine Biological Laboratory, Woods Hole, MA. He used FontStudio by Letraset to create it. Luc Simon Universite Laval lsimon@alnus.for.ulaval.ca