162 PROCEEDINGS OF THE CALIFORNIA 



Donations to the Cabinet : California Mosses, lichens and 

 liver-mosses, by Mr. H. N. Bolander. 



Regular Meeting, September 5th, 1864. 

 Vice-President, Dr. Eckel in the Chair. 



Nine members present. Prof. B. Silliman, Jr., Dr. Eichler, 

 and Mr. Ehrenberg as visitors. 



Donations to the Cabinet: A specimen of a wild cherry 

 from Catalina Island, by Mr. J. E. Clayton. A collection of 

 plants from Washoe, by Mr. Bloomer. 



Prof. B. Silliman remarked that in his recent visit to 

 Arizona, east of the Mohave, he had seen what he presumed 

 were the morains of former glaciers on the eastern flanks of 

 some of the mountain ranges. They consist of rudely 

 stratified materials both angular and round, mingled con- 

 fusedly together and forming terrace-like spurs or embank- 

 ments radiating outwards from the curved range and appearing 

 to have been left there by glaciers, though no glacial polish- 

 ing and scratching of the rocks could be seen as in the Sierra 

 Nevada opposite Mono Lake and elsewhere. These evidences 

 of glaciers in Arizona were nearly under the 35th parallel of 

 latitude, and he believed that no evidence of glacial action had 

 before been observed on the Pacific slope at a point so far 

 south. 



Prof. W. P. Blake observed that this was certainly the first 

 observation upon glacial phenomena in Arizona, and that he 

 had noted evidences of former glaciers in the Sierra Nevada, 

 as far south as the Tejon Pass, lat. 35°, where there were 

 large blocks of granite deposited for miles beyond the opening 

 of the valley. 



Prof. Silliman described the peculiar character of the 

 outcrops of the veins in the regions of the El Dorado Canon. 

 He found that nearly all vestiges of the sulphurets were 



