Geology and Natural Efistory. 409 
lower basin, The basin itself oceupied about one-third of the 
space bounded by the ancient walls of the crater. 
_ Flowing down the sides of the symmetrical cone that the fall- 
ing stream of lava was rapidly forming were many bright rivers 
. 2 # 
Sented a unique and beautiful appearance. On the extreme right 
entire area of the basin was overflowed by the melted lava. 
e us, and 
called frequently to each other to note when some tall jet, rising 
had reached the summit level of the mountain, 
we heard the muffled roar of the long pent up gases as they rushed 
out of the opening which their force had rent in the basin’s solid 
bed. And now that we were in full view of the grand display, 
Sparkling upward jet rising with tremendous force from out an 
meandescent lake. Following up the glowing stream, we saw it 
arch itself and pour over as it were in one broad beautiful cas- 
Cade. While the ascending stream was almost silvery in its intense 
brightness, the falling sheet was slightly dulled by cooling, and 
thus the two were ever rising, falling, shooting up in brilliant 
8. Voleanie Energy: An Attempt to develop its true Origin 
ad Cosmical Relations ; by Roserr Mauiet, F.R.S. (Proce. 
Am. Jour. Gage 3 Srrigs, VoL. IV, No. 23.—Nov., 1872, 
