corporation quarry Frank sink quarry S.J Marshall jk see. cavernous within 1 ft of lane Same large cavonies, with caverns exposed at RR quay. 8 ft. Cavernous l. weathering to rather thin bedded rubbles platy ma. Q 3 ft Shaly, + many small strephelid zones flat on one side 2 ft 6 in Linnest me Halynites megnolage ce at top, 3 in Shaly, chief coral horizon 14 4 ft 3 in Massive zone cavernous 5 ft 6 in. Massive. Much less cavernous. 1 ft 3 in Massive layer.