The agate, found in our hills, is a crystal formation, but the particles are so minute that they are discernable only under the microscope. It is shaped by the cavity in which it is formed. The colors depend upon the mineral matter it contains; iron producing reds, saponite the greens, chalcedony the grays, and caladonite the blues. The agate is classed as a gem but it is also used in the manufacture of bowls, vases, signet rings, and for rollers in the textile industry.

William Cullen Bryant in his poem “Thanatopsis” spoke of the earth as “rock ribbed and ancient as the sun.” Perhaps he was wrong in his conjecture that the earth is as old as the sun, but we leave that to the astronomers. It is true that the rock-ribbed earth is very old and each of the “ribs” gives testimony of antiquity. One of the interesting fossilized remnants found in our Ozark country is the crinoid, commonly referred to as a sea lily stem.

Had old Father Neptune decided to pick a bouquet of sea lilies for his wife, the lovely Amphitrite, he could have found them in abundance—on the floor of the sea where Eureka Springs now stands. According to the geologists, there were two periods, each millions of years long, and separated by millions of years, when this region was the bottom of the sea. The Ozark Mountains are the oldest range on the North American continent and were at one time higher than they are now. They rose from the sea, grew old and weathered to a mere plain, and then sank for a second inundation. During the millions of years that followed, which geologists call the Mississippian Period, a class of sea lilies, called Crinoids, lived in the warm waters of this vast sea.

These Crinoids were fixed to the bottom of the sea, preferring a depth of about 150 fathoms. They were attached permanently, or temporarily, mouth upward, with a jointed stalk. At the top of the stem there was a muscular body that had both motor and sensory qualities. It lived upon minute protozoa and other animalcules, which it absorbed from the sea water.

When the sea receded from the North American continent these Crinoids were preserved by nature’s chemistry. They were fossilized into the Boone Limestone. These fossils are found in abundance in the Ozarks, especially at Eureka Springs, and in Benton county near Sulphur Springs, Arkansas. Some of the stems held together and appear as screw-like formations in the rock. Sometimes they were broken up and the discs or segments of the stem are scattered through the rock strata. Two hundred seventy-five million years of the earth’s past lie buried in this Ozark limestone.

I sometimes take tourists on hikes at Eureka Springs and one of my favorite trails is over East Mountain that rises abruptly from the valley floor of this famous stairstep town. Near Onyx Spring I point out the Crinoids in the rock strata which give mute evidence that this region was once the bottom of the sea. Some of these sea lily fossils are almost perfect, others are broken into fragments.

One need not be a geologist, or even a student of geology, to observe and enjoy the rock formation of the Ozarks. The region is an open book and even he who runs may read and enjoy it.

There are stories in the stones at Eureka Springs. Tourists who visit Cork, Ireland usually go out to the village of Blarney, four miles distant, and take a look at the medieval castle built by Cormac McCarthy in 1449. On the summit of the castle tower is the famous Blarney Stone which has been kissed by thousands of people from all parts of the world. It is an age-old superstition that to kiss this stone endows one with the gift of coaxing, wheedling, flattery and blarney. Eureka Springs does not have a “Wheedling Stone,” but it does have the Sliding Rocks at Little Eureka Spring which tradition has marked with special purpose. The name, Sliding Rocks, has a double meaning. In the first place, two large flat rocks, each about twenty feet in diameter, stand tilted against the mountain side at an angle of forty-five degrees. They slid down the mountain, ages ago perhaps, to their present location. That was long before the white man came to drink the “Wonder Water” from the near-by spring. An oak tree a foot in diameter now stands in the path which the rocks took in making the descent to their present position. Putting the rocks in this position was the work of Nature; to wrap them in a halo of tradition called for the ingenuity of man.

Some person who liked to have fun noticed the Sliding Rocks and started a custom that developed into a ritual. They became initiation stones for newlyweds as a part of the charivari ceremony. In the Ozarks, newly married couples are usually “shivareed” by their friends. They are serenaded with bells and shotguns and other racket making devices and if the groom refuses to “treat” with candy and cigars, he is given an unconventional bath in the river. In some communities the bride and groom are driven around town in a horse-drawn vehicle or an old jalopy.

At Eureka Springs, it became a practice to have the newlyweds slide down the perpendicular rock near the spring. It developed into a tradition and even today honeymooners, others too, try the daring slide to prove their courage. The surface of the stone is covered with scratches made by shoe heels that dug-in during the sliding operation. The most disastrous potential about this fun-making ordeal is the disruption of the seat of the pants.