22 GEOLOGICAL HISTORY OF LAKE LAHONTAN. 



Incident to our geological studies in the Mono basin was a visit to the 

 glaciers now existing amid the lofty peaks of the Sierra Nevada, on its 

 western border. A sketch of the observations relating to these glaciers, 

 together with a summary of what has been published in reference to these 

 and other glaciers of the United States, was issued in the Fifth Annual Report 

 of the United States Geological Sui'vey. 



