A more recent item, courtesy of Slog tipper Hayley. Evolutionary biologist H. Allen Orr rips into Richard Dawkins's The God Delusion:

Though I once labeled Dawkins a professional atheist, I’m forced, after reading his new book, to conclude he’s actually more an amateur...

Dawkins has written a book that’s distinctly, even defiantly, middlebrow. Dawkins’s intellectual universe appears populated by the likes of Douglas Adams, the author of The Hitchhiker’s Guide to the Galaxy, and Carl Sagan, the science popularizer, both of whom he cites repeatedly. This is a different group from thinkers like William James and Ludwig Wittgenstein—both of whom lived after Darwin, both of whom struggled with the question of belief, and both of whom had more to say about religion than Adams and Sagan. Dawkins spends much time on what can only be described as intellectual banalities...

The vacuum created by Dawkins’s failure to engage religious thought must be filled by something, and in The God Delusion, it gets filled by extraneous quotation, letters from correspondents, and, most of all, anecdote after anecdote... None of Dawkins’s loud pronouncements on God follows from any experiment or piece of data. It’s just Dawkins talking.