Vf'i/t'-u UJa^^uu 



PROCEEDINGS 



OF THE 



DEC 1^ l^XALIFORNIA ACADEMY OF SCIENCES 



Third Series 

 Geology Vol. I, No. 9 



The Pleistocene Geology of the South 



Central Sierra Nevada with Especial 



Reference to the Origin of 



Yosemite Valley 



BY 



Henry Ward Turner 



With Nine Plates 



Issued December /, jgoo 



SAN FRANCISCO 

 Published by the Academy 

 1900 



