262 The American Geologist. Apni, 1903. 
PERSONAL AND SCIENTIFIC NEWS. 
Professors Raphael Pumpelly and W. M. Davis are 
about to start on a journey in western Asia to occupy four or 
five months. They propose to cross the Caspian sea from 
Baku and then take the railroad to Merv and Samarkand : the 
return will probably be made across the plains past the Aral 
sea to Orenburg in southeastern Russia. 
Extinct Bison from Alaska. Dr. J. F. Whiteaves de- 
scribes in the Ottawa Naturalist four crania of Bison found 
in the auriferous gravels of the Klondike district from eighteen 
to forty-five feet below the surface. He considers that they 
all probably belong to Bison cr^^ssicornis of Richardson. 
"They are all obviously of no great antiquity, and show no 
traces of mineralization." 
A Fossil Mammoth's Toqth was found recently ar Giv- 
en, in Manaska county, Iowa. It was still in the socket of the 
jaw, which was broken fortunately so as to expose the man- 
ner of insertion. It was brought to Minneapolis by Supt. A. 
B. Cutts of the Minneapolis and St. Louis railroad. This is 
in southeastern Iowa, in the valley of the Des Moines river, 
and in the general area of the Kansan drift. 
The Geological Department of Harvard University 
offers for the following summer a field course in geology in 
the mountains of southwestern Colorado. Selected areas in 
the Needle Mountain district will be mapped, after a familiar- 
ity with the rock series has been acquired by a study of the 
section exposed in the Anirnas Canyon. The more important 
mining districts of the San Juan mountains will be visited. 
The course will begin about the first of July and continue five 
weeks. It will be conducted by Mr. Chas. H. White who will 
send a descriptive circular on appHcation. Mr. White's ad- 
dress is, Rotch Building, Harvard University, Cambridge, 
Mass. 
