Instruct: Classify a given review into positive or negative sentiment.
Query: Excellent polemic against creationism, but also quite dense.

This is the ultimate and most complete work against the pseudoscience of young-earth creationism. In issue after issue.--including the flood, transitional forms, the geological column, and others-- Strahler annihilates the positions of people like Duane Gish of the Creation Research Institute. The only issue I think he could have treated more effectively is the "astronomical odds" argument against evolution that creationists use. Richard Dawkins addressed that more effectively in his book "The Blind Watchmaker" (though I detest his militant atheism). Strahler's work nevertheless deserves great praise, though it is also very dense and technical. If you are willing to wade through it, this is the book.Note: There is a 1999 edition of this book that is still in print.