The wonders of the world

by John Loraine Abbott

MANNER OF WORKING THE DIVING ARMOR.

The method of exploring with this armor, is seen in the second cut, where the diver is represented as below the water, while his companions are in the boat above, some of them holding the ropes, some pumping down air, and others holding the ladder, while the diver himself is picking up some object of value from the bottom of the sea. This armor has been used in searching for amber, pearls, lost treasure, &c., &c. And when, some years since, the United States steam-frigate Missouri was sunk in Gibraltar harbor, so as to obstruct navigation, and all attempts by distinguished English engineers to raise her had proved in vain, an American, going down in the above-described armor, explored her position, and then contracted to blow her to pieces, which he successfully accomplished, though she was in twenty-six feet water, and covered by fifteen feet of sand. In doing this, he consumed forty-three thousand pounds of powder, raised sixteen hundred tuns of iron, and some eight hundred tuns of oysters that had grown to the iron. All his men were clothed in the submarine armor, and so perfect was the management, that not a life was lost, and not an accident happened during the whole of the operation.

In this connection, the recently invented “Nautilus diving-bell” is worthy of notice. This bell is provided with air-tight compartments, which hold either air or water, as ascent or descent is required: and is so ballasted that, when filled with water, buoyancy is destroyed, and the machine gradually sinks. Expel the water from the tanks, and the machine comes of course at once to the surface. By opening a valve near the bottom of the bell, the water enters through a pipe into the tanks; the air at the same time escaping through a valve at the top, opened or closed by the operator at will.[will.] Descent is thus effected. On the contrary, let air be turned into the tanks, escape at top be closed, and valves at bottom opened, water is expelled and ascent secured. To raise heavy weights, a greater or less amount of water is expelled. Suspension-chains attached to weight, immediately tighten; machine and weight become buoyant, and then by cables attached to anchors working through stuffing-boxes, windlasses may be transported to any desired spot, and there deposited. Free communication may be held with the bottom through an opening of between twelve and fifty square feet, according to size of bell, closed by an iron door, and secured by bolts. By throwing the door back, an equilibrium between air and water may be attained at any depth, by greater or less amounts of air, as determined by suitable gauges permanently fastened in the bell. Such is the ingenious mechanism of this wonderful contrivance.

TREE-HOUSE IN CAFFRARIA.

In Caffraria, in Africa, there is an “inhabited tree,” which travelers thus describe: “It stands at the base of a range of mountains, due east from Kurrichaine, in a place called ‘Ongorutcie Fountain.’ Its gigantic limbs contain seventeen conical huts. These are used as dwellings, being beyond the reach of the lions, which, since the incursion of the Mantates from the adjoining country, when so many thousands of persons were massacred, have become very numerous in the neighborhood, and destructive to human life. The branches of the tree are supported by forked sticks, or poles, and there are three tiers, or platforms, on which the huts are constructed. The lowest is nine feet from the ground, and holds ten huts; the second, about eight feet high, has three huts; and the upper story, if it may be so called, contains four. The ascent to these is made by notches cut in the supporting poles; and the huts are built with twigs, thatched with straw, and will contain ten persons, conveniently.”

TREE-HOUSE IN CAFFRARIA.

A view of one of these trees is given in the cut on the previous page. Other villages have been seen by travelers, built somewhat similarly to the above; but these were erected on stakes, instead of trees, about eight feet above the ground, about forty feet square, larger in some places, and containing about seventy or eighty huts. The inhabitants sit under the shade of these platforms during the day, and retire at night to the huts above.

THE RAINING-TREE.

The island of Fierro is one of the most considerable of the Canaries, and some suppose its name to have been given upon this account: that its soil, not affording so much as a drop of fresh water, seems to be of iron; and, indeed, there is in this island neither rivulet, nor well, nor spring, save that only toward the seaside there are some wells; but they lie at such a distance from the city, that the inhabitants can make no use thereof. But the great Preserver and Sustainer of all, remedies this inconvenience by a way so extraordinary, that we can but sit down and acknowledge that he gives in this, undeniable demonstration of his goodness and infinite providence. For in the midst of the island, says a late traveler, there is a tree, which is the only one of the kind, insomuch that it hath no resemblance to those mentioned by us in this relation, nor to any other known to us in Europe. The leaves of it are long and narrow, and continue in constant verdure, winter and summer; and its branches are covered with a cloud, which is never dispelled, but resolved into a moisture, causing to fall from its leaves a very clear water, and that in such abundance, that the cisterns, which are placed at the foot of the tree to receive it, are never empty, but contain enough to supply both man and beast.