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A flock of diving gulls, for instance, which they passed at no great distance, presented the curious spectacle of little more than dark dots furnished with pairs of quickly-moving webbed feet whilst they floated on the placid surface; but directly a bird dived its whole body became distinctly visible, with a long stream of air-bubbles trailing behind it.
This, you see, is why, when the snow melts, you have only a little dirty water in your hand; the crystals are gone and there are no more air-bubbles held prisoners to act as looking-glasses to the light. Hoar-frost is also made up of tiny water-crystals, and is nothing more than frozen dew hanging on the blades of grass and from the trees. But how about ice?
As the ice gets thicker the unfrozen water between the slabs containing the impurities and air-bubbles gets narrower. When the ice on the plates is eight or ten inches thick very little of the unfrozen water remains between the great cakes, but it contains practically all the impurities.
The two halves rolled far to starboard, then to port, shivered, settled, turned completely over, and sank in a turmoil of bursting steam and air-bubbles. Three minutes later the Beaufort lifted her stern and dived gently after her victim, still groaning hoarsely from her punctured iron lungs. In her death-agony she had given birth to a child more terrible than a battle-ship.
The skin is emphysematous that is, bloated and yielding to pressure. It crackles when touched, and the surface, when the feathers are removed, presents a swollen bubbly appearance; for under the skin there is a layer of air-bubbles extending over the whole body and even down the legs under the horny tesselated skin to the toes, the legs thus having a somewhat massive appearance.
And Wilson has gone, and Chase, whom I knew as a young man in society in Cincinnati, has gone, and Stanton has gone, and Seward has gone, and yet how lively the world races on! A few air-bubbles of praise or lamentation, and away sails the great ship of life, no matter over whose grave! Well, one cannot but feel it!
The men who fail to make themselves a respectable manhood are the boys who are put to no business, the young men who have nothing to do, the male beings that have no Employment. We have them about us walking nuisances pestilential gas-bags fetid air-bubbles, who burst and are gone. Our men of wealth and character, of worth and power, have been early bound to some useful Employment.
On the other hand, fishes may be drowned in water just as easily as ourselves if it does not contain air. The little fish who could have lived very well in the bottle we were just now talking about before you exposed it to the flame of the taper, would have died in it after all the air-bubbles had gone off; and I hope I need not tell you why.
At once dive down perpendicular to the bottom when the air-bubbles show, seize the drowning person and bring him to the surface by pushing off from the bottom and using your legs to send you upward to the surface. Before trying to rescue any one get rid of as much clothing as possible, if time will permit.
Of this glassy dust, that which was blown into the regions beyond the clouds must have been much finer even than that which was examined. These glass fragments were said by Dr. Flügel to contain either innumerable air-bubbles or minute needle-like crystals, or both.
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