Assembling again in a more roomy chamber, about 140 feet below the entrance, we all proceeded along a tunnel that showed evident traces of the action of a stream to another chamber, where the sound of running water came up from a grim-looking chasm. Only two of us went beyond this point. The rest secured the rope, whilst we climbed down the steep hole into a large cavern through which the stream runs from the swallet hole in the ravine outside on its way to Rickford Rising, where it issues in considerable volume. The stream has a somewhat puzzling course after leaving the cavern, for it runs underground athwart Burrington Combe and through the solid hill opposite, Burrington Ham. This stream, as Professor Boyd Dawkins pointed out, was doubtless the originating cause of Goatchurch Cavern, running in at the present mouth, which is now dry. The ravine outside has since been hollowed out to a further depth of 120 feet, and the stream finds its way in at a lower level. The Professor also describes a very pretty experiment. Having taken the temperature of the stream before it enters the cave, he tested it again after it had run some distance underground, finding that it was here several degrees cooler. It is obvious that a colder stream must have joined it at some unknown point midway. The nethermost series of chambers and passages are not very different from those above, their shape rugged and irregular, and their floor heaped up with fragments of all sizes. We reached no lower point than that attained by previous explorers--that is, 220 feet below the entrance, as measured by aneroid. Squeezing with difficulty through the deepest fissure, I found myself in a small cave, whence, turning round, I only perceived one exit. It looked and felt so small that I despaired of pushing through and turned to go back, when it suddenly occurred to me that this was the hole I had come in by, and there was no other way out. Such little incidents often happen in cave work, but most often in such a complicated network of tunnels and fissures as the Goatchurch Cavern, where we were quite convinced that an important passage ran due east until the compass assured us that the direction was west. Clambering up a steep bank of stiff clay out of the lowest cave, we reached a vaulted grotto with a cascade of stalagmite flowing down one side. On the edge of this a sloping passage disclosed itself, lined with stalagmite, and we ascended it in the expectation of finding something new. It brought us by an easy scramble back to the upper cave, whence we had descended on the rope; and with little more deviation from the main passages we made our way back to the cave mouth, where a well-earned lunch was waiting.