Haynes new guide and motorists' complete road log of Yellowstone National Park . tely incrusting it with its black ornamentations. The Silver Globe derives its name from the constantrising to its surface of large, silvery bubbles of gas, which,of course, immediately disappear on reaching the air. Artemisia Geyser is sixty feet in diameter and gen-erally very little agitated, merely overflowing. The sur-rounding formation, quite unlike that of any other geyseris as hard as flint, and of an olive-green color. Althoughfor the most part very quiescent, this spring has occasionalpulsations in the n
Haynes new guide and motorists' complete road log of Yellowstone National Park . tely incrusting it with its black ornamentations. The Silver Globe derives its name from the constantrising to its surface of large, silvery bubbles of gas, which,of course, immediately disappear on reaching the air. Artemisia Geyser is sixty feet in diameter and gen-erally very little agitated, merely overflowing. The sur-rounding formation, quite unlike that of any other geyseris as hard as flint, and of an olive-green color. Althoughfor the most part very quiescent, this spring has occasionalpulsations in the nature of eruptions, at which times largequantities of water are forced out, flooding the eruptions occur at intervals of twelve to twenty-fourhours. Morning Glory Spring is passed just before com-ing to the Eiverside Bridge. The symmetrical shape andfunnel-like crater whose walls are delicately colored, ac-count for its appropriate name. At the surface the diame-ter is 23 feet and the temperature 100 degrees F., and ap-parent depth 29 feet. 60 HAYNES NEW GUIDE. MORNING GLORY SPRING, CLOSE-UP Upper Grejrser Basin contains twenty-six geysersand upwards of 400 hot springs. The Firehole Eiverdrains it, centrally; its shelving banks are thickly pittedwith steaming hot springs and studded with mounds andcones of geyserite. Here, grouped within the narrow spaceof perhaps a square mile are the grandest and mightiestgeysers known to man; and silent pools of scalding,meteoric water that for beauty of formation and delicacyof coloring are marvels. The surface of the basin consists,for the most part, of a succession of gentle undulations,each crowned with a geyser-cone or hot-spring vent andcovered with layers of silicious sinter that give it a grayish-white, sepulchral hue. Clouds of vapor hang shroud-likeabove it; the earth trembles and is filled with strangerumblings, the air is heavy with sulphurous fumes, andvegetable life is extinct. In a paper read before theCardiff
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