Subject: Companion piece to Preston's chapter From: "William J. Rapaport" Date: Thu, 4 Mar 2010 13:46:31 -0500 (EST) An interesting companion piece to Preston's chapter is: Petroski, Henry (2010), "Occasional Design", American Scientist 98(1) (January-February): 16-19. Links to the article and its illustrations are at: http://www.cse.buffalo.edu/~rapaport/584/whatisaprocedure.html#petroski10