%T The Positive Power of Negative Thinking %I Blackwell Publishing Ltd %P 446-452 %X Book reviewed in this article:Science and Scepticism. By John W.N. Watkins. %A Stefano Gattei %L eprints70 %R doi: 10.1111/j.1096-0031.2002.tb00160.x %N 4 %D 2002 %J Cladistics %V 18