It was found that the floor of the cave exhibited the following succession: (1) Blocks of limestone sometimes large, clearly fallen from the roof. (2) A layer of black mould ranging from a few inches to upwards of a foot in depth. (3) Beneath this came a floor of granular stalagmite, about a foot in thickness, formed by the drip of water from the roof. (4) A red loam containing a number of limestone fragments. (5) A breccia of angular fragments of limestone and pebbles and sandstone embedded in a reddish sandy calcareous paste. On June 19th, 1880, the exploration of Kent's Hole was brought to an end. It was the most complete and systematic investigation of a cavern that had ever been undertaken, and on a much greater scale than that at Brixham. A task of this kind is peculiarly exacting. It cannot be entrusted to workmen; it cannot be left to a committee whose members pay but intermittent visits: it demands the constant oversight of one man; and this superintendence was given to Pengelly. The total amount spent on this exploration was £2000. Pengelly states in one of his papers that in the fifteen and a quarter years during which the excavation was in progress he visited Kent's Hole almost daily, and spent over the work, on an average, five hours a day. "Above the stalagmite, and principally in the black mould, have been found a number of relics belonging to different periods, such as socketed celts, and a socketed knife of bronze, and some small fragments of roughly smelted copper, about four hundred flint flakes, cores, and chips, a polishing stone, a ring (made of Kimmeridge clay), numerous spindle whorls, bone instruments terminating in comb-like ends, pottery, marine shells, numerous mammalian bones of existing species, and some human bones, on which it has been thought there are traces indicative of cannibalism. Some of the pottery is distinctly Roman in character; but many of the objects belong, no doubt, to pre-Roman times." What was found beneath the stalagmite belonged to a long anterior period, where it had lain sealed up for, at the very least, two thousand years. In this deposit of the cave earth were found a large number of chips, flakes, and implements of flint and chert, stones that had served as pounders, and some pins, needles, and harpoons of bone. Some mammoth bones were found in Kent's Cavern, and those of the cave lion, the sabre-toothed tiger, the glutton, cave bear, woolly rhinoceros, horse, reindeer, and beaver. Mr. W. Pengelly died on March 17th, 1894.