the same general appearance but of different temperatures, and with the water upon different levels. The overflow from these springs for a great number of years has formed an incrusted bank overlooking the border of the lake, rising to the height of six feet; and, as the streams running from the springs are bordered with incrustations of various hues, depending upon the nature of the deposit or substance in solution, so the incrusted bank, which has been in process of formation for ages, exhibits all of these varied colors. In a number of places along the bank of the lake, this incrusted deposit is broken down and has crumbled into small pieces, upon which the waves have dashed until they have been moulded into many curious shapes, and having all the colors of the deposits in the springs--white, red and white blended, yellow and green. Cavernous hollows which fill the shore incrustation respond in weird and melancholy echoes to the dash of the billows. The bottoms of the streams flowing from the deeper springs have for some distance a pure white incrustation; farther down the slope the deposit is white in the center with sides of red, and still farther down the white deposit is hidden entirely by the red combined with yellow. From nearly all these springs we obtained specimens of the adjoining incrustations, all of which were too hot to be held for more than a moment even with the gloved hand. Between the springs all along the border of the lake were small craters from which issued hot steam or vapor, besides which there were many cold craters. Along the edge of the lake, out in the water from ten to thirty feet from the shore are to be found springs with the water bubbling up a few inches above the surface. None of the springs in this locality appeared to be very strongly impregnated with sulphur. Some of the incrustations on the beach are as white and delicate as alabaster. These are the springs which we observed on September 5th from our camp on the eastern shore of the lake.