Inglenook, The (1907) . Shafts and Cathedral Spires. the mineral in solution ,is deposited in the form ofminute crystals of calcium carbonate. As the pro-cess continues, pendent structures, stalactites, of vari-ous forms are built, the more common ones beingsub-conical or tapering. Much the same phenomenonoccurs where the water drips to the floor of the cave,. • Twin unite to form a column similar to the Twin Col-umns in the same cave. These columns, especiallythe one to the left, do not conceal the union of stalac-tite and stalagmite. The slight union of the parts cfthe column to th
Inglenook, The (1907) . Shafts and Cathedral Spires. the mineral in solution ,is deposited in the form ofminute crystals of calcium carbonate. As the pro-cess continues, pendent structures, stalactites, of vari-ous forms are built, the more common ones beingsub-conical or tapering. Much the same phenomenonoccurs where the water drips to the floor of the cave,. • Twin unite to form a column similar to the Twin Col-umns in the same cave. These columns, especiallythe one to the left, do not conceal the union of stalac-tite and stalagmite. The slight union of the parts cfthe column to the left and the ring or circular con-striction around the right column tell the story of THE IXGLENOOK.—Tune 11, 1907. 555 tlieir development. However, there are cases in whichthe union is so perfect tliat no external mark showswhat has taken place. Just how many years these particular columns inthe Cave of the Winds required for their formationno one knows. Since the cave is now dry everywherestalactites are not forming. Therefore no observationto determine the rate of growth can be made. Usual-ly one sees statements that in general one hundred3-ears are required for the formation of one linearinch of stalactites. This statement may apply forsome locality, perhaps, but not for every place for ithas been determined by experiment that the growthvarie
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