This is for a friend who hasn't got an e-mail account. He's been searching
databases and such for primary sources on ornithological evolution, in
particular involving studies of Archaeopteryx (spell.?). Can you suggest
primary sources to concsult, or at least professional journals that he can
consult that have dealt with the subject?
Please e-mail me at ddackerman at tiny.computing.csbsju.edu
and I'll forward any suggestions to him.
And Yes, he has done plenty of hours of research on the topic, but his
sources were considered too "secondary." But they were all he could find.