Top left to bottom right: NRH contours corresponding to herringbone emission between 12:13:00 UT and 12:13:20 UT at 150.9 MHz, 173.2 MHz, 228.0 MHz, and 270.6 MHz, over-plotted on the 211 Å running-difference image for 12:15:09UTC. Sixteen contours corresponding to sixteen herringbones are shown for 150.9 MHz and 173.2 MHz. Bottom left: Fifteen contours for fifteen herringbones extending to 228.0 MHz. Bottom right: Eight contours shown for eight herringbones extending to 270.6 MHz.