the cataract. The feat required iron nerves, and muscles and sinews of no ordinary kind; and its performance alone stamps Carrel as a man of dauntless courage. One of the Maquignaz's subsequently descended in the same way, and these two men were so astonished at what they saw, that they forthwith set to work with hammer and chisel to make a way into this romantic gulf. In a few days they constructed a rough but convenient plank gallery into the centre of the gouffre, along its walls; and, on payment of a toll of half-a-franc, any one can now enter the Gouffre des Busserailles.
I cannot, without a couple of sections and a plan, give an exact idea to the reader of this remarkable place. It corresponds in some of its features to the gorge figured upon page 140, but it exhibits in a much more notable manner the characteristic action and power of running water. The length of the chasm or gouffre is about 320 feet, and from the top of its walls to the surface of the water is about 110 feet. At no part can the entire length or depth be seen at a glance; for, although the width at some places is 15 feet or more, the view is limited by the sinuosities of the walls. These are everywhere polished to a smooth, vitreous-in-appearance surface, In some places the torrent has wormed into the rock, and has left natural bridges. The most extraordinary features of the Gouffre des Busserailles, however, are the caverns (or marmites as they are termed), which the water has hollowed out of the heart of the rock. Carrel's plank path leads into one of the greatest,—a grotto that is about 28 feet across at its largest diameter, and 15 or 16 feet high; roofed above by the living rock, and with the torrent roaring 50 feet or thereabouts below, at the bottom of a fissure. This cavern is lighted by candles, and talking in it can only be managed by signs.
I visited the interior of the gouffre in 1869, and my wonder at its caverns was increased by observing the hardness of the hornblende out of which they have been hollowed. Carrel chiselled off a large piece, which is now lying before me. It has a highly
