Geology and Mineralogy. 71 
include maps, copies of many sketches or drawings of the Stone 
age, anc i 
other objects throwing light on ancient human history. 
nary. The illustrations—over 160 in number—are excellent, and 
age, after the land connecting Britain with Greenland had been 
submerged and the Atlantic was united to the North Sea and the 
When the living species became abundant, he appears just in the 
might be expected to appear. The River-drift man first comes 
6. . Coan, 
(From a letter to the editors, dated Hilo, Hawaii, May 3d to 6th, 
1880).—Hilo is in a haze of sulphur smoke, and we see the sun as 
Mauna Loa. At 8 P.M. of the same day, my wife called my atten- 
tion to an unusual light in the direction of the mountain. At 
was clear. The clouds dispersed and the spectacle of a burning 
mountain opened to our sight. The action was intense. The 
as if a vast column of melted rock, a mile in 
diameter, was being poured out of the mountain with amazin 
force and vehement heat. Brilliant corruscations shot out in a 
directions, lighting up the clouds to the apparent height of 30° 
and spreading out for many miles along the summit of the eastern 
side of the mountain. The outbreak was in full view from the 
west side of our house, which was brilliantly lighted up by the 
fires, while the front part was in a deep shade, rendering the con- 
trast striking 
summit crater, Mokuaweoweo; and others that it was at a point 
few miles north of it. Since that night the mountain has been 
so veiled in clouds and smoke that we have not been able to see 
the fire. Yesterday flocks of Pele’s hair, and light particles of 
