researches in the Yellowstone country (1878) not known "by him at 
the time, and one named by Professor G-, K. G-ilbert, U. S. G-eologist 
in the Henry Mountains of Utah (1877) not known by him until 
several years later. Phis latter honor is explained as follows: 
during Holmes geological explorations in the Colorado Valley, he 
had teen the first to describe a peculiar type of mountain-build- 
ing, since frequently observed. It happened that in the long 
past there had been much volcanic activity in the region and great 
bodies of lava were formed and pressed upward, sometimes reaching 
the surface, though often not doing so, but instead spreading out 
beneath the surface where softer deposits were encountered, lift- 
ing the superior harder strata up in dome-like elevations of great 
extent. As surface erosion long afterward penetrated the^ domed 
were in part exposed revealing the secrets 
of their structure. 
In 1898 fee was awarded the loubat Prize of $1,000 by 
tne Columbia University of Hew York for the most important work 
in the field of American archeology for the five-year period end- 
ing with 1898; and a second prize of $400 for the most important 
publication in this field for the five-year period ending with 
1923. 
r ^ , 
io indicate the recognition that has come to Holmes 
A 
within the fields of both science and art, it may be stated that 
he is a member of the national Academy of Sciences and a score 
or more oi other scientific, art and literary organizations. He 
has represented the Smithsonian Institution at numerous scientific 
