U. S. Geological Survey
1919 to 1920
- Title
- U. S. Geological Survey
- Collection
- George Ellery Hale Papers
- Series
- Director’s Files of the Mount Wilson Observatory
- Identifier
- HaleGE_10_00_170_07
- Dates
- 1919 to 1920
- Extents
- 14 pages
- Existence and Location of Copies
- This folder is represented in the microfilm edition of the Hale Papers by reel 99, frames 416 to 430.