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Besides these sun-hats, the Kayans and Kenyahs and some of the Klemantans weave with fine strips of rattan close-fitting skull-caps and head-bands. The ends of the strips, some three or four inches in length, are sometimes left projecting from the centre or forming a fringe round the lower edge. The close-fitting hemispherical war-cap is made of rattans about half an inch thick split in halves.
Its face was honeycombed by the usual hemispherical chippings, which somehow always reminds me of the fretted walls of the Alhambra; and it was actually hollowed out so that its upper edge overhung our heads at a height of some twenty or thirty feet; the long fringe of icicles which adorned it had made a slippery pathway of ice at two or three feet distance from the foot of the wall by the freezing water which dripped from them; and along this we crept, in hopes that none of the icicles would come down bodily.
As a result of patient experiment and continued researches he came to the conclusion that a huge outer envelope taking the form of a polygonal cylinder with hemispherical ends, constructed upon substantial lines with a metallic skeleton encased within an impermeable skin, and charged with a number of smaller balloon-shaped vessels containing the lifting agent hydrogen gas would fulfil his requirements to the greatest advantage.
They consisted of a great number of hemispherical forms of large diameter, hanging vertically from a Stratus cloud or plane above them, and to which they appeared attached. They were regular in shape, and very distinct; they barely touched each other, and were of a gray color. They might be compared to a hay-field turned upside down, with innumerable hay-cocks hanging below it.
By lingering steps there was early developed a method of building up vessels by a process differing in part from the spiral. As the parching-bowl had been evolved from the roasting-tray, so, we may infer, the food-bowl was suggested by the hemispherical food-trencher of wicker-work.
After an interval of two or three, or sometimes four or five seconds, the hemispherical body of mud rose and exploded again. In the manner stated this volcanic ebullition goes on without interruption, throwing up a globular body of mud, and dispersing it with violence through the neighboring plain. The spot where the ebullition occurs is nearly circular, and perfectly level.
As the hemispherical mirror begins to open, the observer receives the full light, since the whole lit hemisphere is illuminated with strict equality; and as it closes again, he passes into darkness. Other characteristics can be produced by different modifications of the above.
There is a ball valve, fig. 45, between the pump and the tender, and two usually in the pipe leading from the pump to the boiler, besides a cock close to the boiler, by which the pump may be shut off from the boiler in case of any accident to the valves. The ball valves are guided by four branches, which rise vertically, and join together at the top in a hemispherical form.
The reader is probably familiar with the structure of an ordinary astronomical observatory. The building is usually cylindrical in shape, with a very light hemispherical roof capable of being turned round from the interior.
I was working quickly to undo the large package, and as the wrappings finally came off, I could see that it was some bulky instrument that looked like a huge gun, or almost a mortar. It had a sort of barrel that might have been, say, forty inches in length, and where the breechlock should have been on an ordinary gun was a great hemispherical cavity.
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