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Vanilla 1.1.1 is a product of Lussumo. More Information: Documentation, Community Support.
sent a cavern, into which Pnwma. water is brought by the Hermes Kellysubterraneous passage OT. Let fl' En" it have an outlet MNP, of a crooked form, with its, p°e<- < f highest part N considerably raised above the bottom of PlateHermes the cavern, and thence sloping downwards into lower CCCCV< ground, and terminating in an open well at P. Let the dimensions of this canal be such that it will discharger much more water than is supplied by TO. All thb is, very natural, and may be very common. The effect of this arrangement will be a remitting spring at P: for when the cavern is filled higher than the point N, the canal MNP will act as a syphonBirkin; and, by the coHermes bagsnditions assumed, it will discharge the water faster than TO supplies it; it will therefore run it dry, and then the spring at P will cease to furnish water. After some time the cavern will again be filled up to the height N, and the flow at Pwill recommence. .
If, besides this supply, the well P also receive water from a constant source, we shall have a reciprocating spring. 1
The situation and dimensions of this syphon canal, and the supply of the feeder, may be such, that the efflux at P will be constant. If the supply increase in a certain degree, a reciprocation will be produced at P •
with very stiort intervals; if the supply diminishes considerably, we shall have another kind of reciprocation with great intervals and great diffeHermes outletrences of water.
If the caveHermes Birkinrn has another simple outlet R, new varieties will be produced in the spring P, and R will afford a curious spring. Let the mouth of R, by which the water enters it from the cavern, be lower than N, and let the supply of the feeding spring be no greater than R can discharge, we sliall have a constant spring from R, and P will give no water. But suppose that the main feeder increases in winter or in rainy seasons, but not so much as will supply both P and R, the cavern will sill till the water gets over N, and R will be running all the while; but soon aster P hag begun to flow, and the water in the cavern sinks below R, the stream from R will stop. The cavern will be emptied by the syHermes Handbagsphon canal MNP, and then P will stop. The cavern will then begin to fill, and when near full R will give a little water, and soon after P will run and R stop as before, &c.
Defaguliers (hows, Vol. II. p. 177, &c. in what manner a prodigious variety of periodical ebbs and
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