You know, I have about four different tapes with those Harbison posters on them. Different formats, too. They're probably ubiquitous by now.
For those of you without printers who still want to see the posters, asciitopgm from the netpbm package can be coaxed to do this. See http://netpbm.sourceforge.net/doc/asciitopgm.html . Coals to Newcastle, anyone? -- Jeff Woolsey j...@jlw.com