He tells me that today he found three other [limestone lenticles (more than twenty long)] in the Highgate and not at all in contact with the Drantm empy. This is to the south of Hempstead Forest and over of the Highgate - it Ctans road. He regards them as reef limestone- lenticles - in the Highgate. This then falls in the layer one of Rockledge and the large one of Corlen Ledge. One of those found today was a little below the shale-limestone conglomerate seen near the base of the Highgate formation, in the Highgate Falls gorge. The thickness of the lenticles are 10ft to 15 feet. The Rockledge great men of li. Heilth now thinks lies in the Highgate. It is overlain by a shale-conglomerate but with large limestone pieces than in the gorge of the Highgate. The great lenticle of the Corlen ledge lies in the Drantm conglomerate for beneath are in the Highgate slate. Therefore are these great blocks are connected with the Highgate (not the Corlens ledge one), and may well be reef limestone formed in mud bottom seas, such is now going on in the Mediterranean. If so the strata were overgrown, and the bonding of the slate has nothing to do with seasonal storms and cold months.