Box 39
Container
Contains 14 Results:
Correspondence with water companies in California, 1949
File — Box: 39, Folder: 234
Series Scope and Contents
From the Series:
The series consists of research files and notes compiled by Johnson for his study of the history of hydraulic engineering and hydraulic mining in California.
Dates:
1949
California water projects, miscellaneous materials, 1930-1945
File — Box: 39, Folder: 235
Scope and Contents
Includes physical data on hydro-electric plants and steam electric plants in California, maps, notes, etc.
Dates:
1930-1945
Index of maps of ditches and canals in California to be found in the State Mining Bureau's Register of Mines and Minerals, 1903; with title of canal or ditch and pagination in the Register, 1898-1905
File — Box: 39, Folder: 236
Series Scope and Contents
From the Series:
The series consists of research files and notes compiled by Johnson for his study of the history of hydraulic engineering and hydraulic mining in California.
Dates:
1898-1905
Compilation of historical data on California mining ditches, 1949-1950
File — Box: 39, Folder: 237
Scope and Contents
Annotated holograph bibliography on hydraulic mining. Includes Historical background of the Nevada Irrigation District, compiled by Johnson, 1949.
Dates:
1949-1950