16 Hassan and I Agree to Accompany T’Zshal

I held the line coiled, in my left hand, it tied to the handle on the metal, perforated cone, swinging in my right.

It was cool in the pit, on the large raft. At each corner of the raft, mounted on a pole, was a small, oil-fed lamp. It was dark in the pit, save for our lamps, and those of other rafts. I could see two other rafts, illuminated in the darkness, one some two hundred yards away, the other more than a pasang distant over the water. In places we could see the ceiling of the pit, only a few feet above our head, in others it was lost in the darkness, perhaps a hundred or more feet above us. I estimated our distance beneath the surface to be some four hundred feet. The raft, in the dark, sluggish waters, stirred beneath our feet.

I flung the cone out from the raft, into the darkness, allowing the line to uncoil from my left hand, following the vanishing, sinking cone.

I shared the raft with eight others, three, who handled cones as I, the “harvesters,” four polemen and the steersman. Harvesters and polemen, periodically, exchange positions. The raft is guided by a sweep at its stern, in the keeping of the steersman. It is propelled by the polemen. The poles used are weighted at the bottom, and are some twenty feet in length. One of the poles, released in deep water, will stand upright in the water, about a yard of it above the surface. The weight makes it easier to keep the pole, which is long, submerged. It may thus be used with less fatigue. The floor of the brine pit, in most places, is ten to fifteen feet below the surface of the water. There are areas in the pits, however, where the depth exceeds that of the poles. In such areas, paddles, of which each raft is equipped with four, near the retaining vessels, are used. It is slow, laborious work, however, moving the heavy raft with these levers. The raft is some twelve feet in width and some twenty-four or twenty-five feet in length. Each raft contains a low frame, within which are placed the retaining vessels, large, wooden salt, tubs, each approximately a yard in height and four feet in diameter. Each raft carries four of these, either arranged in a lateral frame, or arranged in a square frame, at the raft’s center. Ours were arranged laterally. The lateral arrangement is more convenient in unloading; the square arrangement provides a more convenient distribution of deck space, supplying superior crew areas at stem and stern. From the point of view of “harvesting,” the arrangements are equivalent, save that the harvesters, naturally, to facilitate their work, position themselves differently in the two arrangements. If one is right-handed, one works with the retaining vessel to the left, so that one can turn and, with the right hand, tip the harvesting vessel, steadying it with the left band.

I allowed time for the cone to sink to the bottom.

The retaining vessels are, at the salt docks, lifted from the rafts by means of pulleys and counterweights. The crew of a given raft performs this work. When the retaining vessels are suspended, they are tipped, and the sludge scooped and shoveled from them into the wide-mouthed, ring-bearing lift sacks. These, drawn and pushed on carts, fitted onto wooden, iron-sheathed rails, are transported to the hooked lift ropes. These ropes run in systems to the surface and return. Men at windlasses on the surface lift the sacks, which, when emptied, return on the slack loop. The weighted loop cannot slip back because each hook, in turn, preceding the sack being emptied, engages one of several pintles in the machinery, which is so geared that it can turn in only one direction. There are twelve of those pintles, mounted in a large circle; when a given hook drops off one, freed by gravity, another hook is already engaged on another, held there by the weight of the ascending lift sacks. Empty sacks are placed on slack hooks, below the machinery, to be returned to the pit.

The steersman, when not attending to his sweep, carried a lance. We were not alone in the pits.

Hand over hand, I drew the cone through the sludge toward the raft.

I had been amazed to learn that the brine pits, in effect a network of small subterranean marine seas, were not devoid of life. I had expected them to be sterile bodies of water, from the absence of sunlight, precluding basic photosynthesis and the beginning of a food chain, and the high salt content of the fluid. A human body, for example, will not sink in the water. This is one of the reasons, too, it is particularly desirable, in this environment, to weight the raft poles, to help counter the unusual buoyancy of the saline fluid. In my original conjecture, however, as to the sterility of these small seas, I was mistaken.

“Look there,” called a harvester.

I saw it, too. The other men came to my side of the raft, and we noted it, moving in the water. The steersman dropped the point of the lance toward the water, watching, too.

I slowly drew up the metal, perforated cone. Water drained from it, in tiny irregular streams, spattering back into the sea, and onto the boards of the raft. Then I lifted the cone and deposited the sludge in the retaining vessel, the large wooden tub behind me and to my left. I did not again coil and cast the line. I, too, watched the water.

The light of our lamps flickered on the surface, yellowly, in broken, shifting refractions.

“There!” said one of the men.

Lefts are often attracted to the salt rafts, largely by the vibrations in the water, picked up by their abnormally developed lateral-line protrusions, and their fernlike craneal vibration receptors, from the cones and poles. Too, though they are blind, I think either the light, or the heat, perhaps, from our lamps, draws them. The tiny, eyeless heads will thrust from the water, and the fernlike filaments at the side of the head will open and lift, orienting themselves to one or the other of the lamps. The lelt is commonly five to seven inches in length. It is white, and long-finned. It swims slowly and smoothly, its fins moving the water very little, which apparently contributes to its own concealment in a blind environment and makes it easier to detect the vibrations of its prey, any of several varieties of tiny segmented creatures, predominantly isopods. The brain of the left is interesting, containing an unusually developed odor-perception center and two vibration-reception centers. Its organ of balance, or hidden “ear,” is also unusually large, and is connected with an unusually large balance center in its brain. Its visual center, on the other hand, is stunted and undeveloped, a remnant, a vague genetic memory of an organ long discarded in its evolution. Among the lefts, too, were, here and there, tiny salamanders, they, too, white and blind. Like the lefts, They were, for their size, long-bodied, were capable of long periods of dormancy and possessed a slow metabolism, useful in an environment in which food is not plentiful.

Unlike the lefts they had long, stemlike legs. At first I had taken them for lelts, skittering about the rafts, even to the fernlike filaments at the sides of their head, but these filaments, in the case of the salamanders, interestingly, are not vibration receptors but feather gills, an external gill system. This system, common in the developing animal generally, is retained even by the adult salamanders, who are, in this environment, permanently gilled. The gills of the lelt are located at the lower sides of its jaw, not on the sides of its head, as is common in open-water fish. The feather gills of the salamanders, it seems, allow them to hunt the same areas as the lelts for the same prey, the vibration effects of these organs being similar, without frightening them away, thus disturbing the water and alerting possible prey. They often hunt the same areas. Although this form of salamander possesses a lateral-line set of vibration receptors, like the left, it lacks the craneal receptors and its lateral-line receptors do not have the sensitivity of the lelt’s. Following the left, not disturbing it, often helps the salamander find prey. On the other hand, the salamander, by means of its legs and feet, can dislodge prey inaccessible to the lelt. The length of the stemlike legs of the salamander, incidentally, help it in stalking in the water. It takes little prey while swimming freely. The long lees cause little water vibration. Further, they enable the animal to move efficiently, covering large areas without considerable metabolic cost. In a blind environment, where food is scarce, energy conservation is essential. The long, narrow legs also lift the salamander’s head and body from the floor, enabling it, with its sensors, to scan a greater area for prey. The upright’ posture in men delivers a similar advantage, visually, in increasing scanning range, this being useful not only in the location of prey, but also, of course, in the recognition of dangers while remote, hopefully while yet avoidable. But it was not the lelts nor the salamanders, which explained our interest in the waters.