NEWARK, N.J.: Confronted with the dolorous industrial flatlands that stretch away to the south of Newark, New Jersey, most tourists would agree with the visitor who characterized the area as miles and miles of “robot vomit.” But it is a paradise to members of the Society for Industrial Archeology. This organization of historians, architects, engineers, and other enthusiasts recently took a one-day bus trip through industrial New Jersey to visit places that any other tour would want to avoid. I went along.