I certainly couldn't follow it all, especially the linguistics parts, an area in which I have no knowledge. But those parts I could follow were 80-90% wrong in his assertions. His logical reasoning was faulty, too.
a review of Volume II:
The World Turned Upside Down
EMILY VERMEULE
March 26, 1992
http://www.nybooks.com/nyrev/WWWarchdisplay.cgi?19920326040R
Not Out of Africa
by Mary Lefkowitz
Was Greek Culture Stolen from Africa?
Modern Myth vs. Ancient History
Excerpted from--
"Not Out of Africa:
How Afrocentrism Became an Excuse to Teach Myth as History"
http://www.martinlutherking.org/not-out-africa.html