. Annual report. 1st-12th, 1867-1878. Geology. THE B EE-HIV E. diameter to the height of 100 to 150 feet, and by a succes- sion of imi3ulses seemed to hold it up steadily for the space of fifteen minutes, the great mass of water falling directly back into the basin, and flowing over the edges and down the sides in large streams. When the action ceases, the water recedes be- yond sight, and nothing is heard but the occasional es- cape of steam until another exhibition occurs. This is one of the most accommodating geysers in the basin, and during our stay played once an hour quite regularly. On
. Annual report. 1st-12th, 1867-1878. Geology. THE B EE-HIV E. diameter to the height of 100 to 150 feet, and by a succes- sion of imi3ulses seemed to hold it up steadily for the space of fifteen minutes, the great mass of water falling directly back into the basin, and flowing over the edges and down the sides in large streams. When the action ceases, the water recedes be- yond sight, and nothing is heard but the occasional es- cape of steam until another exhibition occurs. This is one of the most accommodating geysers in the basin, and during our stay played once an hour quite regularly. On account of its apparent regularity, and its position overlooking the valley, it was called by Messrs. Langford and Doane "Old ; It has built up a crater about 20 feet high around its base, and all about it are decorations similar to those previously de- scribed. On the morning of August 6, we ascended the mountains at the head of Fire-Hole Eiver, on our return to the hot-spring camp on the Yellow- stone Lake. We had merely caught a glimpse of the wonderful physical phenomena of this remarkable val- ley. We had jnst barely gleaned a few of the surface observations, which only sharpened our desire for a larger knowledge. There is no doubt in my mind that these geysers are more i>owerful at certain seasons of the year than at others. We saw them in midsummer, when the sur- face waters are greatly diminished. In the spring, at the time of the melt- ing of the snows, the display of the first-class geysers must be more fre- powerful. Temperatures may vary somewhat, though those STILL HOT SPRING AND PYRAMID GEYSER BASIN. and the chart may be relied on as correct. beautiful scenery, its hot springs and geysers, with We left this valley, great quent given on with its regret. Mr. Elliott has sketched an ideal section of a portion of the Upper Geyser Valley, (Fig. C3,) which may convey a clearer conception of the way in which we may suppose the waters of many
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