The netherworld of Mendip

Part 7

Chapter 73,669 wordsPublic domain

The water poured down a staircase of similar basins, where to keep clear of the stream was impossible. So far we had kept tolerably dry, but as we clung to this watery ladder I pricked up my ears at the remark, "Will you have your back or your stomach in it?" Crouching on all fours, with back pressed against the low roof, and looking between my legs, I watched the performances of my comrades, as each in turn went through the final archway. Not one escaped a severe wetting. But I was going to be more wily--at least, I thought so. With hands and knees in the rushing stream, I squirmed hastily but cautiously through. I seemed to be getting on famously, and gave a spurt. That moment the rocks ended; they were undercut. I found myself sliding down a waterfall 10 feet high, and floundering in a big pool at the bottom. Drenched we were; but what better preparation could we have for the troubles ahead? This part of the cavern shows traces of enormous changes in the course of the stream, which has planed down great masses of stalagmite, the growth of ages, when this section of the tunnels was dry or all but deserted by the streams, which found a way down by the horizontal canal or some higher channel. Between this first water-chute and the second lies the most nerve-trying part of the journey to the farthest point hitherto attained. It is a succession of lofty rifts, giving into each other at right angles, the water sweeping from one to the next through curving fissures and sudden falls. For a while we kept above the canyons on a water-worn shelf, all that remained of a low, flattish chamber that sufficed for the small streams of older times. This giving out, we scrambled along the cliffs of the canyons, which seemed in the gloom without top or bottom, bestraddling the rift, or with feet on one side and back to the other pushing on from hold to hold. The Limestone grips would have been amply sufficient for this mode of progression had they not been drenched and slippery. Below us the waters raced and bellowed. At the junctions of the canyons they sounded on all sides at once; the invisible hollows all round seemed to be alive with angry voices, mad to be at us. What if a thunderstorm burst over Mendip now? Such thoughts would occur, although we knew we could climb into safety on the upper shelves of the canyon; for with a water-chute above and another below, a little flood would make us fast prisoners.

At the Well, the stream tumbles suddenly into a deep round pit, in which it is churned to foam before being driven out with accelerated speed along a rugged gorge to the second staircase of potholes. Shreds of magnesium ribbon dropped into the Well lit up such a turmoil of waters as one might see in some gigantic turbine going at full speed. Two of us now went ahead to report on the condition of the next stage. The gorge was too wide for climbing, but we found a footing on the rocks in the bed, then squirmed through a narrow fissure, and began to descend the potholes. These were deep basins, with high walls on the upper side where the stream poured in, and the other side broken down by the force of the torrent. Below them lay the second water-chute, a big fall pitching into a hole underneath a low arch, and sliding out into a turbulent pool. It was a sort of culvert, with very little head-room above the water. Had we not come through so many tribulations already, and had we not known of the glories that awaited us in the great stalactite chamber beyond this last trial, we should certainly have been turned back by this obstacle. After some little hesitation we resolved to attempt it, and went back to the head of the Well for our companions. One of the cameras had already been left behind; it was decided to leave the other here. The leader went down the water-chute on his back; the rest adopted all the other attitudes possible short of a complete header. But it made little difference; all got a most effectual drenching.

Running the gauntlet beneath another tributary, which came swishing in just over our heads, we pushed on into a high and ample chamber, where in times gone by a volume of water had accumulated in a sort of gigantic cistern. The rocky roof was flat and smooth, its cracks and fissures fringed with meandering lacework of stalactite. In front, the rocky mole that once held up the reservoir was cloven into a series of Limestone seracs, between which the stream found its way down into the remoter cavities. Masses of clay, some 15 feet thick, deposited by the ancient waters, still flanked this rugged portal into the unknown. Bones of sheep, cattle, horses, and lesser mammals lay about in profusion, enough to reconstruct whole skeletons; with them were the relics of animals now extinct on Mendip, deer and other creatures. Higher up sherds of Samian pottery had been found, brought down by the stream from the rubbish heaps of long ago. What struck the imagination as still more wonderful was that in this sunless spot, 300 feet below the surface, there were creatures that lived. Empty snail shells were abundant, but yet more plentiful were tiny snails that were actually crawling over the clay, feeding, no doubt, on water-borne vegetable matter. Gossamer-like webs stretched across many chinks in the Limestone, but the microscopic spiders we could not see. What flies did they live on? Surely not the caddis, whose corpses lay about in plenty on every shoal.

From this chamber the stream quickly descends into the great Water Rift, one of the most wonderful things in the whole cavern. It is but a few feet wide, but its height is enormous. The walls go up like mountain cliffs, but are lost in gloom instead of mist. Here tremendous changes had taken place since the former exploration. At that time the rift was blocked up in one place by a vast barrage of rock and stalagmite, that came down to the stream and forbade human progress save by one strait and difficult way. At a height above the water a hole ascended seven feet into the barrier, its orifice all but closed by a fringe of stalactites. Contriving to enter, the explorers crept up this pipe, and down a corresponding one on the other side, coming out on a cliff face overhanging the continuation of the Water Rift, to attain the bottom of which was an abstruse gymnastic problem. A little farther on they reached the utmost limit of their journey, where the stream beats violently against the termination of the rift, is hurled sideways, and finds an outlet through a low crevice, whence it tumbles in a 40-foot cataract into an unknown pool. Our main object to-day had been to descend this 40-foot pitch; that was the reason why we had encumbered ourselves with two long ropes. But now all was different. In the short interval that had elapsed since the former visit, the strength of the ungovernable torrent had swept away the whole of this vast structure, the work of thousands of ages--for the Pyramids are recent erections compared with these products of unimaginably slow crystallisation. Hardly a vestige remained; and now the current dashed unimpeded from end to end of the Water Rift, and the incessant thunder of the cataract deafened ears already attuned to the noise of the higher falls and canyons. Probably the removal of stones and dams by the former party, in making their way down, had contributed largely to this extraordinary event.

Nothing could be done in the face of such a volume of water. We turned, accordingly, out of the main passage into a lofty gallery or transept that branches off to the west, the general direction of the cavern being due south. To say it branches off is slightly incorrect, for it is really the course of a tributary brook, and quite possibly may have been in remote times the channel of the main stream. At all events its shape and magnitude indicate that it was once a very important section of the cavern. Scrambling cautiously along the sides of the toppling fragments of the mole, we crossed a deep gap and entered the gallery. At the portal a great hollow corbel of stalactite stood out from the wall, like an enormous stoup, its huge rims curved over like the petals of a flower. It stood there in solitary grandeur, but it was a token of transcendent glories beyond. A few more steps, and we saw that we were on the threshold of a fane more beautiful than any made with hands. The rocks to right and left were sheeted with crystalline enamel, its surface powdered thickly with a minute splash deposit, so frail that it gave one a twinge to crush the lovely efflorescence as we moved. One could not go a step without destroying hundreds of these delicate spicules, the work of untold ages of water action. More great corbels stood out from the walls as we advanced; they were richly moulded with concentric rings of stalagmite, and these again were carved and chased with wonderful reliefs. From the corbels sprang huge pillars right to the roof, pillars 40 feet in height; and from their capitals shining curtains hung down in ample folds, heavy as Parian marble, and as lovely in hue. One would have called them white, had we not seen, hanging from a cleft high up in the lofty walls, a mass of curtains as white as arragonite, the whitest thing there is. So dazzling was their immaculate purity that the rich creamy surface of the other incrustations showed dusky in comparison. We were veteran cave explorers, yet it seemed to us that all the caves we had ever seen in Britain could no more vie with this than parish churches with cathedrals. At each turn there was a new and more enthralling vista: more pillars, ampler curtains, piers and arches of Oriental magnificence, fluted and moulded into wildest fantasies. It struck one with a curious wonder to think that all these splendours had lain here unbeheld by living eye, untouched by a gleam of light, until one casual year in the twentieth century.

But the photographer was exercised by other feelings. He was here, but where was his camera? It had seemed a Herculean labour to bring that much-enduring instrument down to the 300-foot level, but he declared that the task was not superhuman, and, furthermore, he was determined to do it. He could not do it alone, however; that was obvious. The expedition, therefore, came down out of the stalactite gallery. Two went through the water-chute, two remained just outside it, to assist in the last and most dangerous stage of the transportation. We waited a long time; in fact, we had leisure enough to explore an interesting side gallery whilst the others made their way to and from the head of the Well. At last their welcome shout was heard. Standing in the water, with light held low under the arch, we caught sight of a hand, and then of a wading and much-crumpled-up man, lugging the camera, which he kept out of the foaming water with admirable skill. We grabbed it, and put the precious instrument in a place of safety; ten minutes later the flashlight was at work, taking our breath away with its gorgeous revelations. The photographer had his troubles even here, though not such as to be compared with those of the water caverns we had recently traversed, where at this moment two of our party, following us down, were engaged in photographing the canyons and the falls, under difficulties that few cameras have ever been confronted with. Here there was no marble pavement suitable to the splendours of the walls; nothing for the camera to stand on but an inch or two of slippery ledge, with a depth of mud in the middle that none of us cared to fathom. The only place that could be found at one spot for the flashlight was the top of my unfortunate head, which I generously put at the photographer's disposal. On it was laid a piece of stone, on which the gun-cotton was spread and sprinkled with the powder, which, when it went off, made me shut both eyes for fear of the shower of sparks, and so I missed the glorious blaze of light that illumined the cavern.

These stately columns, soaring vaults, and sweeping marble draperies were strangely out of proportion to the narrowness of the place. But now the sinuous aisle broadened out, and the style of the architecture was changed entirely. We were at the junction chamber where, in the remote past, two big streams came down from the yawning passages to the left and right, and met here, probably as the main stream of the cavern. The roof is a spacious dome, hung with resplendent candelabra. But the unique feature of the place, the thing that impresses itself on the memory as one of the most dazzling creations of the wonder-working calcite, is the stalagmite bridge. Bridge, I say, but it is more than a bridge, for its complicated arches support a beautiful piazza, with a huge array of dripstone terraces, crystal basins, massive pedestals, and obelisks of stalagmite, which all but fills the chamber and extends some distance up the alcoves behind. Standing on one of the great hemispheres of dripstone, one could put one's head among the pendulous shafts above, and see how each was marvellously twisted, moulded, and fantastically embossed and gemmed with flashing crystals. The splash formation covered everything beneath the roof, save portions of the polished floor, with millions of tiny spicules. We had to move about cautiously, not only for fear of doing damage, but to avoid gaping pitfalls in the bridge, the surface of which was smooth as ice.

Whilst we were at work photographing a distant shout was heard, and soon the two men who had followed us down arrived at the big chamber. But our party was again reduced to its original four by the departure of two other members, who were to go back by the aquatic route in order to pick up certain articles that had been deposited on the way down. We ourselves hoped to get to the surface by another and a drier course. At the previous exploration two men had missed the rest of the party, and found their way, after divers adventures, through the ramifications of the cavern, to what they described as a great stalactite chamber, which was presumably our gallery. When they reached it, however, no one was there, nor any trace of human presence; either the explorers had finished their work and departed, or the pair had missed their way altogether. It was believed that they had come down to this very spot by the gallery joining this one on the north, and we purposed following that passage out. But this, as we presently discovered, was all wrong.

Two of us now went off on an exploring trip into the great passage running west. At once we encountered a series of huge obstructions. This passage was of the usual rift pattern, and, save for holes and crevices between, was wholly blocked up by large masses of tumbled rocks. One of us climbed to the top of the Cyclopean pile, whilst I attempted to make my way along at the middle height, but eventually found it easier to crawl through the culverts and water-gaps, regardless of mud and wet. Even among the piled-up rocks there were charming little nooks adorned with rich incrustations. When the rocks ended the open tunnel began to ascend rapidly; then, after a while, we came to another tunnel joining it on the north. This, though smaller, was the more important passage; the other shortly came to an end in a lofty grotto, bountifully tapestried with curtains and tassels of stalactite. We climbed the northern passage, through several brilliant displays of incrustation, and reached a level approximately 70 feet below the surface, by aneroid; there we could get no farther. But, unknown to ourselves, we had brought back important information.

We had noticed mysterious bits of string at two points in this series. When we reported the discovery to the two men left behind, they at once saw its significance. The two men whose route down to the stalactite chamber had caused so much perplexity had used a ball of string to mark their way out--these were the relics. Our casual trip had, perhaps, saved us from a night of blind wandering in the unknown branches of the great tunnel on the north. All being in readiness for our departure, we now proceeded to take up this providential thread. It was not an easy task. Often not an inch of string remained undecayed for many hundreds of feet together, and often we nosed the walls and floor, eagerly but in vain, for droppings of candle grease left by our predecessors. The way was dry, that was a relief, after six or seven hours in wet clothes; but it was a tighter squeeze than the other, and the sharpness of the turns was often aggravated by a portcullis of crystals on our backs, and a _cheval de frise_ of stalagmite spear-heads against our stomachs. All the while we wondered whether we should really find the exit, or whether we should have to return and undertake the canyons after all. Mr. Balch compared our task of finding the desired exit to an attempt to ascend from the mouth of a river to some unknown point upon one of its tributaries, with nothing to indicate which way to take. This puts the position clearly enough, I think. There was no string to be found in the higher parts. At last the man in front disappeared feet foremost through the ugliest hole we had yet seen, out of which the noise of waters sounded ominously. A cheering cry came back to us; he had found the rift, where we had descended seven hours ago into the route through the canyons. A few more yards of determined wriggling, and the candle left by the other two men hove in sight. We found they had got out two hours ago. The stars were shining from a clear sky, and a keen frost was on the fields, but the excitement and the success of our adventure were stimulant enough to keep out the cold.

E. A. B.

THE GREAT CAVERN AT CHEDDAR

The ultimate goal of our researches at Cheddar has been the discovery of the underground river-course. Not many yards below the entrance to Gough's, or the Great Cavern, a large body of water wells up at the foot of a cliff, spreading out into a beautiful mere, half encircled by crags; flows on thence through the village, performing a great deal of industrial work on its way; and, finally, proceeds a mile or two farther as the Cheddar Water, to join its brother, the Axe, which has a similar origin. But less is known about the darksome course of the Cheddar Water than about the stream flowing out of Wookey Hole. With its tributaries, it has doubtless been the principal agent in the formation, not only of the caves, but also of the famous Cheddar gorge, which bears every evidence of having been produced by the gradual destruction of a series of caverns. Yet this important stream has actually not been met with hitherto at any single point of its course underground, and we have anything but complete information as to its sources on the uplands of Mendip. The owners of the Great Cavern, the Messrs. Gough Brothers, tell me that they intend to blast away about 10 feet of rock immediately overlying the exit of the river. When the stream is very full, water often bursts forth here from cracks and joints several feet above the normal level, and they imagine that there must be a chamber of some height just within. This, however, in my opinion, is not a necessary inference, since every cavity and crevice behind the outlet would at such times be heavily charged with water, under pressure, and the large cavities might be a long way back. It is curious that the water in a low tunnel recently discovered in Cox's Cavern, which lies some distance from Gough's, and at a lower level, rises and falls in unison with the movements of the water-level of the river outside, although that always remains 10 feet higher. Cox's Cavern is occasionally flooded, yet the water never rises to a point within 10 feet of the river level. Obviously the subterranean connection must be of a complicated and roundabout form.

At the time of my first serious attempt to explore the caves of Cheddar, when our party contained Dr. Norman Sheldon, Mr. J. O. Morland, and Mr. Harry Bamforth, two of whom have not since been able to join us in Somerset, I had not the advantage of knowing Mr. H. E. Balch, and we were utterly unaware of the great work he had been doing in the cave region adjoining Wells. On the other hand, we received invaluable assistance from the brothers Gough, who are not only proprietors of show caves, but take a sincere interest in underground exploration. Their father, who died in 1902, was the discoverer of the caverns that bear his name, and was actively at work pushing his way farther and farther into the rocky bosom of the hill up to the year of his death, at a good old age.