andre said:

The Internet Archive has 3 copies from 3 different sources.

i see 4. but who's counting? and of the ~15000 lines in this book, approximately 9,000 have identical o.c.r. across all 4 digitizations, with another 3,000 that have identical o.c.r. across 3 of the 4 digitizations, meaning that the "problem lines" can be boiled down to a fairly small subset... i'm busy with another project right now (thanks, alpha-testers!), so if someone else wants to do that research, go ahead please... -bowerbird