No. 8 SMITHSONIAN EXPLORATIONS, I913 35 
esque islands, two of which should be permanently reserved by the 
Government, for they shelter thousands of birds during the nesting 
Fic. 36—The Needles, Pyramid Lake. Photograph by Paine. 
Fic. 37.—Tufa domes, Pyramid Lake. Photograph by Paine. 
season. Humboldt, Quinn, Walker, and Carson Rivers, and also ° 
Honey, Walker, and Carson Lakes are parts of this system. 
