326 The American Geologist. ^^^'' ^^^"■ 
i'ine Creek valley, he found numerous remains of elephants 
and bisons and came to the conclusion, from the existence of 
arrow points in connection with the remains, that man was 
cotemporary with these animals. He recommends that these 
swamps should be more carefully examined. 
In Colorado it is a remarkable fact that the profitable mines 
are distributed through every geological terranc, from the 
Archaean granite to the Tertiary conglomerate, and mining is 
going on in rocks belonging to all the principal subdivisious 
of geological time, and amid a variety of petrographic 'environ- 
ment which includes nearly all of the principal sedimentary 
and crystalline rocks. In arriving at the age of the country 
enclosing these lodes it has frequently been difficult to consider 
the sedimentary apart from the intrusive igneous rock, and it 
is not too much to say that there is not a mining district among 
the sixty-five which he has- tabulated, in which igneous rocks 
do not occur in close association with the ore deposits. 
T. A. RICKARD. 
Three scholarships of $200, v$i5o and $125 are an- 
nounced for the Harvard summer geological course in Color- 
ado under the direction of Mr. C. H. White. These scholar- 
ships are open to general application, from teachers and stu- 
dents of geology, whether now enrolled at Harvard Univer- 
sity or not. Applications should be addressed to Mr. C. H. 
White, Rotch Building, Cambridge, Mass., and should describe 
the applicant's previous training in geology and his purpose in 
further study. Letters of recommendation should be enclosed. 
Action on the applications will be taken June i. The expenses 
of the course, including fee for instruction, will be about $200 
from Chicago and return. 
Mr'. Ellsworth Huntington has lately been appointed 
Research Assistant by the Carnegie Institution, and will sail 
April 18 with professor W. M. Davis to join professor Raphael 
Pumpelly in Turkestan. Mr. Huntington graduated at Be- 
loit college in 1897; he then spent four years as science teach- 
er in Euphrates college, Harput, Turkey, and while there 
made an adventurous journey thro' the canyons of the Euphra- 
tes, for which he has lately received the Gill memorial from 
the Royal Geographical Society of London. For the past two 
years he has been attending the Graduate School of Harvard 
universitv, and last summer he was one of professor Davis' 
party in Utah and Arizona. 
