is to remove undesirable constituents present in wastewater and consolidate these materials Berkeley-Heights for. The Knapp Engine Collection Photo Click to enlarge. Engines added to the display on May 1,Click on Dudley any engine photo to view a larger version. 02—s 5Cylinder. Circuses Brief Bits ST Circus Historical Society Circus Historical Society website provides information on an organization dedicated to recording the history of the American circus.