Sea salt

“ Should any difficulty arise in the way of getting the salt water direct from the sea, it may be made artificially by dissolving ‘sea salt’ in the proper proportion of fresh water, or even by purchasing the different salts contained in the sea separately, and then adding them to fresh water in proportionate quantities. ”

“ Sea salt may be obtained ready prepared in any quantity, as it is manufactured for the convenience of those who desire a sea bath at home; and it will be seen from what has been said that the artificial sea-water may be prepared, to correspond almost exactly with that of the sea, by the addition of three and a half pounds of sea salt to about ninety-six and a half pounds of water. ”

“ Let it be clearly understood that all commercial salt is produced either from the sea or from rock-salt. Sea-water is evaporated to precipitate its salt either by the heat of the sun or by artificial heat. Rock-salt is mined and refined for market purposes, and it is resolved into brine from which the salt is extracted by solar heat or the process of boiling, but whether the salines are obtained from salt lakes or from natural brine springs, or are prepared by flooding salt deposits with water and pumping it out in the form of fully saturated brine, rock-salt is the foundation for them all. ”

“ But the salt water, which has lost so much of its freshness by evaporation, becomes salter, and therefore heavier. The lighter water at the Straits can not balance the heavier water at the Isthmus, and the colder and salter, and therefore heavier water, must either run out as an under current, or it must deposit its surplus salt in the shape of crystals, and thus gradually make the bottom of the Red Sea a salt-bed, or it must abstract all the salt from the ocean to make the Red Sea brine — and we know that neither the one process nor the other is going on. ”

“ The salt of the sea is a very good thing in its way; it preserves for instance one from catching a beastly cold while one remains wet for weeks together in the “roaring forties.” But in sober unpoetical truth the sea-salt never gets much further than the seaman’s skin, which in certain latitudes it takes the opportunity to encrust very thoroughly. ”

“ The water of landlocked seas like the gulf of Mexico or the Mediterranean sea contains more salt than that of the open ocean, and it is also found that the water of the bottom of such seas is salter than that upon the surface.—Salt crystallizes in colorless, transparent, anhydrous crystals, belonging to the isometric system, and has a very perfect cubic cleavage, which generally displays itself even in the great masses of rock salt, parts of which however are frequently massive and granular, and rarely fibrous or columnar. ”

“ Therefore, because the growing faculty of Vegetables, Animals, and Minerals, or Metals, taketh its rise from the only and Universal Salt of the Earth, and this from the Salt of the Sea, and the Sea Salt, from the Sun, if the Divine Goodness shall grant me Life, I will shew to my Friends, how by small labour and charge, the Universal Salt fatness, fit for the rendring all barren and sandy ground fruitful, instead of Dung, may be copiously separated from Sea Salt. ”

“ In Africa are large beds of salt land, beds of rock-salt and a lake covered at times with a shining white crust of pure salt two feet thick. France, Spain, Portugal, Italy and some Mediterranean islands are the chief producers of sea-salt. In China there are salt wells of great depth and number.
In Spain, France and other countries salt is a government monopoly, and no one else can sell it. ”

“ Considering that the salt rivers are themselves salted by passing through salt regions, or being fed by saline springs, all of which derive their saltness from deposits laid down long ago by evaporation from earlier seas or lake basins, this explanation savours somewhat of circularity. It amounts in effect to saying that the sea is salt because of the large amount of saline matter which it holds in solution. Cheese is also a caseous preparation of milk; the duties of an archdeacon are to perform archidiaconal functions; and opium puts one to sleep because it possesses a soporific virtue. ”

“ It may hence be inferred that the saltness of the sea can not be accounted for by secondary causes, and that it has been salt since the beginning of time. It is indeed impossible to suppose that the waters of the sea were at any time fresh since the formation of fishes and sea-plants; neither will they live in water which is fresh. It may hence be concluded that the saltness of the sea has, with some few exceptions, perhaps arising from mines of rock-salt dispersed near its shores, been nearly the same in all ages. ”

“ Salt is found in greater or less quantities in almost every substance on earth, but the waters of the sea appear to have been its first great magazine. It is found there dissolved in certain proportions, and two purposes are thus served, namely, the preservation of that vast body of waters, which otherwise, from the innumerable objects of animal and vegetable life within it, would become an insupportable mass of corruption, and the supplying of a large proportion of the salt we require in our food, and for other purposes. ”

“ The only assumption required to enable us to explain a great thickness of salt in such as area is, the continuance, for an indefinite period, of a subsiding movement, the country preserving all the time a general approach to horizontality. Pure salt could only be formed in the central parts of basins, where no sand could be drifted by the wind, or sediment be brought by currents. Should the sinking of the ground be accelerated, so as to let in the sea freely, and deepen the water, a temporary suspension of the precipitation of salt would be the only result. ”

“ Yet this doomed and dead sea of salt is a source of life to man in its exhaustless supply of salt for his use. Preeminently is this salt of the Dead Sea a savor of life and of death.
The salt of the ocean is the world's treasure. Without it the greater portion of the earth's inhabitants would perish for lack of what vivifies and preserves animal life. Yet because of the salt in the ocean the very water, which man and beast must have or perish of thirst, is useless to both man and beast. ”

“ If salt, however, were only to be obtained from the sea, the people who live on immense continents would have great difficulty in supplying themselves with it; and here you see how kindly Providence watches over the comfort of human creatures, for nature has provided that the sea, on leaving those continents, all of which were once overspread with it, should deposit vast quantities of salt, sufficient to provide for the necessities of the inhabitants of those parts. ”

“ I have known people who accustom themselves to the use of salt baths, and who talk very glibly of the luxury of sea-bathing, who yet are in complete ignorance of the virtues of salt as a condiment and as a preserver of health, and who try to prove that salt so used is obnoxious, and consequently to be avoided. These salt baths are popular, not because they are beneficial, but by reason of their comparative novelty; and accordingly, many who would not think of using salt with their food, plunge headlong into the sea or into a salt-water bath, with all the vigour possible. ”

“ Particles of chloride of sodium in volcanic ejections were no explanation of the formation of huge deposits of rock-salt, and since it was realized that salt in large quantity can only be obtained from salt water, and that it cannot be got naturally from the sea, it became evident that what man does in isolating tracts of sea-water to produce salt by solar evaporation, must have been practised by nature on an extensive scale in all ages. ”

“ If that drop had been salt, the salt would not have entered into the air, but stayed on your hand, so when the air drinks up the water from the surface of the Dead Sea, the salt remains behind and the sea gets more and more salty; it is many times more salt than the water of an ordinary sea. ”

“ Most of the common salt (the mineral “halite”) of commercial value occurs in nature in sea or salt lake water; or in beds or strata of rock salt associated with other strata; or as natural brine in openings or pores in certain rocks. Considerable salt is obtained by evaporation of tidewater, as around San Francisco Bay, and of salt lake water, as at Great Salt Lake, Utah. It has been estimated that the Great Salt Lake, whose area is about 2,000 square miles and greatest depth 50 feet, contains several hundred million tons of common salt. ”

“ In some countries remote from the sea, which are devoid of salt-mines, and where the water is not impregnated with it, the inhabitants, aware of its usefulness, have a method of extracting it from the ashes of vegetables. This fact would certainly seem to indicate that salt has been used by various nations, as if mankind had an intuitive knowledge of the benefits arising from the use of salt, and that consequently, if there were no lakes containing it, or mountains from which they could procure it, they were determined to obtain it if even by artificial means. ”

“ The whole Orb of the Earth would at length grow dry, and perish, which nevertheless by the perpetual access of salt, never intermitteth, but is encreased and sustained.
There is no Stone which can want Salt, which argueth Salt to be its beginning and nourishment, and that those Mountains, in which is a great quantity of a saline nutriment, do grow and encrease thereby, as receiving it in a plentiful manner from the nearest sea. ”

“ Almost everyone is acquainted with the saltness while many bathers have noticed the superior buoyancy of salt water as compared with the fresh water of our rivers and lakes. The dissolved salts contained in sea water give it a greater density than that of pure water; and, since all floating bodies displace their own weight of the liquid in which they float, it is clear that they will not sink so far in the denser water of the sea as they would in fresh water. ”

“ SALT. Geological Position of Rock Salt—Mines of Northwich—Their immense Excavations—Droitwich and Stoke—Wieliczka—Berchtesgaden and Reichenhall—Admirable Machinery—Stassfurt—Processes employed in the Manufacture of Salt—Origin of Rock-salt Deposits.
Common salt is so necessary to man, and of such vast importance to the manufacturer and agriculturist, that the processes by which it is obtained are justly reckoned among the chief branches of industry.
In many of the warmer countries of the globe it is procured simply by the evaporation of sea-water in shallow lagoons ”

“ The reason I have heard why stock require salt in this country, is, that being at so great a distance from the ocean, there is no salt in the air, as in countries nearer the sea. I {180} believe they give their beasts salt on the shores of the Atlantic; and as it is there said to be serviceable to them, perhaps salt is beneficial to cattle in all situations, at least in hot climates. Beasts are much lighter here than in England, as their flesh is not so firm as in a colder country ”

“ The amount of SALT in the ocean is a circumstance which geologists have not, I think, sufficiently considered. This salt, if precipitated, would, it is believed, yield a solid range of mountains equal to that of the entire Himalaya. Now, mighty rivers run into the sea, as those of La Plata, Amazons, Mississippi, St. Lawrence, Orinoko, and many others; but none of these rivers are salt; they are enormous bodies of fresh water. How, then, does the ocean maintain everywhere its saline character unimpaired? ”

“ We have salt, or the chloride of sodium, presented to us in six different conditions, viz.: sea or salt water, salt or brine springs, salt lakes, salt mines, mountain or fossil or rock salt, and salt marshes. The characteristics of salt are just the same fundamentally, whether we extract it by evaporation from sea-water or salt lakes; whether we obtain it from salt-springs; whether we dig it out of the earth or by the excavation of salt mountains ”

“ The facts that the chief accompaniment of every known deposit of rock-salt is clay, and that clay is deposited in water, formed the basis of the erroneous theory that because salt is a deposit out of water, and sea-water contains salt, all salt beds must have been deposited in the sea. But salt does not mix mechanically with water and has not been deposited like sedimentary rocks; it forms a solution, and not until the solution becomes super-saturated does it crystallize out. Now sea-water rarely contains more than 31⁄2 per cent. ”

“ The sea water contains a quantity of salt, but not in the same proportions every where. In the torrid zone, where otherwise, from the excessive heat, it would be in danger of putrefaction, the water is found most salt; as we advance northward its briny quality diminishes, till at the poles it is nearly gone altogether. ”

“ At one time almost the whole of the salt in commerce was produced from the evaporation of sea water, and indeed salt so made still forms a staple commodity in many countries possessing a seaboard, especially those where the climate is dry and the summer of long duration. ”

“ I shall enter fully into the relation salt bears to vegetable food while it is going through the process of digestion further on, when we come to consider the effects which food salted beforehand has upon the system when continued for any length of time, with little or no variation, which dietary is supposed to be the sole cause of the attacks of scurvy on board ship.
The sea is that grand reservoir which supplies the earth with its fertility; and the air and sun are mighty engines which work without intermission to raise the water from this inexhaustible cistern. ”