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Entered according to Act of Congress, in June. 1869, by J. W. Burke & Cos., in the Clerk’s Office of the District Court of the United States for the So. District of G eorgia Vol. 111-—No. 52. Written for Burke’s Weekly. ARTIFICIAL FOUNTAINS.- \mK A Wjjgr < N artificial fountain is a ma chine by which water is forced upward in the form of a jet, by the power of compressed air. You have, many of you, seen fountains play ing. flow beautifully the water rises and spreads out, dropping in a shower all around. There is quite a pretty little fountain in Macon, and one, con siderably larger, in the Park at Savan nah, which is supplied with water from the Savannah river. Do you know why the water is thrown up by those foun tains ? for they differ from the artificial fountains I have just told you of. I will tell you. The fountain in Macon is sup plied with water from several springs that flow out of a hillside, which is con veyed in pipes, and the fountain throws a jet of water just as high as the spring from which the water is brought to it. 11 is the nature of water to seek its level, and the water in the pipe tries to get on a level with that in the spring, and is thus thrown up as high as the spring on the hillside, and this makes the foun tain. The fountain I have told you of in Savannah, however, is not supplied in the same way. There the water of the river is pumped into a reservoir, or ba sin, which is built on the top of a tower eighty feet high, whence it is carried all over the city in pipes. The fountain is supplied through these pipes, and the jet of water is thrown as high as its source. But in the artificial fountains the jet of water is thrown up by the force of compressed air. The most interesting instrument of this class is known as Hero’s fountain, so named from its in ventor, Tlero, of Alexandria, born one hundred and twenty years before Christ. Avery pretty form of this fountain is shown in the picture. r l he following description of it is from Peck’s Ganot s Natural Philosophy, and will interest our little readers : “ It consists of two globes of glass, MACON, GEORGIA, JUNE 25, 1870. connected by two metallic tubes. The upper globe is surmounted by a brass basin, connected with the globe by tubes, as shown in the figure. To use the instrument, the tube which forms the jet is withdrawn, and through the opening thus made, the upper globe is nearly filled with water, the lower one -.,-'• - '•'«?* *Ai ' * -■>■-■* <£r- ;;r -~ I containing air only. The jet tube is then replaced, and some water is pour ed into the basin. “ The water in the basin, acting by its weight, flows into the lower globe, through the tube shown on the left of the figure, as indicated by the arrow head. This flow of water into the low er globe forces out a part of the air in it, which, ascending by the tube shown on the right of the figure, accumulates in the upper globe. The pressure of the air in the upper globe, acting upon the water in that part of the instrument, forces a part of it up through the jet tube, giving rise to a jet of water which may be made to play for several hours.” Written for Burke’s Weekly. A HUNT ON THE WAKULLA; on, JACK DOBELL IN FLORIDA. By the Author of “ Big-Foot Wallaceand “ Jack Dobells or, A Boy's Ad-ventures in Texas." CHAPTER VII. THE INDIANS IN CLOSE PURSUIT —THE BOAT FIRED INTO —THE ISLAND PRE PARATIONS FOR A SIEGE —THE RAFT AND WHAT BECAME OF IT —GATHERING THE TROPHIES AFTER NIGHT-FALL —ESCAPE IN THE DARKNESS —CONCLUSION. iPSuTHOUI’ halting a moment to catch their breath, as soon '£s£7%s: as they reached the boat, they commenced hurriedly throwing our camp equippage into it ‘ belter skelter.' “ Hello, boys!” said I when T got in speaking distance, “ what’s the matter now ? Are vou going to move camp?” Whole No. 156. “Yes,” said Jimmy, “ if the Indians will only give us time to do' it, but the the woods about here are alive with them.” “ Oh, shucks!” said I, for Jcouldn’t resist the temptation to pay them back a little for what they had said to me the night before, “don't get scared before you are hurt? There are no Indians here —the rifles we heard ‘ were fired by some party of hunters like ourselves,’ and we’ll be laughed at all over the country if we run off in this way from them. Don’t let’s break up the hunt merely because we heard the reports of a few guns last night in the swamp.” “ Well,” said Tommy Hughes, as he bustled the tent and tlie last of our “traps” into the boat, “ anybody can stay here that wants to ; but as for me I shall get out of this hammock just as soon as the winds and the waters and the Indians will permit, for the woods are chock full of them.” And saying this he tumbled into the boat, and we all followed him, for of course we were quite as anxious to get away as he was. And in truth we had but little time to spare, for scarcely had we reached the head of the stream that flowed from the southern end of the pool, when a fear ful yelling was heard behind us, and in a few moments the dusky forms of a dozen savages were seen hurrying through the woods on our right, who evidently iutended to get ahead of us, and to intercept our retreat below. “What are we to do now, boys?” asked Wiley Sparks. “The Indians will get ahead of us and intercept us at some point below, where the river is narrow and where they will kill us all before we can pass them.” “ There is but one point on the river, about a mile below here,” replied Bob Harris, “where the Indians can ap proach it, on account of the deep cy press swamps that extend back some distance from the banks. And if we make baste, we may reach it before they do. At any rate, it is our only chance to escape.” We all thought Bob’s suggestion a a good one, and laid to our oars with a