Life of Upper Lake Region. 141 



at this great depth. They, thinking they were 

 human remains, turned to him for an expla- 

 nation of the mystery and he promised to 

 carry some of the bones to The Dalles, where, 

 he told them, he had a friend who studied 

 such things. One of these fragments was 

 found by the writer to be a remarkably well 

 preserved specimen, shown on Plate XXIII, 

 of a fragment of a radius of a horse quite as 

 large as the corresponding bone of a good 

 sized dray horse of to-day. Careful inquiry 

 brought out the information that the region 

 from the Touchet to the Palouse was nearly 

 level, and the whole eighty-six feet of digging 

 was through river wash. Here, therefore, was 

 proof that when this horse lived, a lake thirty 

 miles across and eighty-six feet deep stretched 

 from the Touchet to the Snake, a depression 

 that was slowly filled up to its present level 

 by the river flow of the region. The same 

 winter the writer published these facts by a 

 lecture in Portland, and the Portland Ore- 

 gonian published the discovery of the fossil 

 horse in Oregon. But the writer took no 



