Photographs of the Yolo Base Line, California, 1881
Processed by James Ryan.
The Bancroft Library, University of California, Berkeley
Berkeley, California 94720-6000
1996
Photographs of the Yolo Base Line, California, 1881
BANC PIC 1980.025 --AX
The Bancroft Library
University of California
Berkeley, California
1996
Finding aid and digital representations of archival materials funded in part by a grant from the National Endowment for the
Humanities.
- Processed and encoded by:
- California Heritage Digital Image Access Project staff in The Bancroft Library and The Library's Electronic Text Unit
- Digital images processed by:
- The Library Photographic Service
- Finding aid completed:
- October 1996
© 1996 The Regents of the University of California
Collection Summary
Collection Title: Photographs of the Yolo Base Line, California,
Date: 1881
Collection Number: BANC PIC 1980.025 --AX
Extent:
11 photographs; 29 x 36 cm.
11 digital objects
Photographer:
Werner Suess.
Repository:
The Bancroft Library. University of California, Berkeley.
Berkeley, California 94720-6000
Languages Represented:
English
Information for Researchers
Access
Restricted originals. Use viewing prints only. Use of originals only by permission of the Curator of Pictorial Collections,
The Bancroft Library.
Publication Rights
Copyright has not been assigned to The Bancroft Library. All requests for permission to publish photographs must be submitted
in writing to the Curator of Pictorial Collections. Permission for publication is given on behalf of The Bancroft Library
as the owner of the physical items and is not intended to include or imply permission of the copyright holder, which must
also be obtained by the reader.
Copyright restrictions also apply to digital representations of the original materials. Use of digital files is restricted
to research and educational purposes.
Preferred Citation
[Identification of item]
Photographs of the Yolo Base Line, California, 1881 , BANC PIC 1980.025 --AX, The Bancroft Library, University of California, Berkeley.
Digital Representations Available
Related Collections
Title: Portraits from the George Davidson Papers,
Identifier/Call Number: BANC PIC 1946.010 --PIC.
Administrative Information
Acquisition Information
The Photographs of the Yolo Base Line, California, were purchased in 1980.
Scope and Content
The Photographs of the Yolo Base Line, California, were taken during 1881 in Yolo County by Werner Suess and show men of the
U.S. Coast and Geodetic Survey, including George Davidson, the moveable tent (Yolo buggy) used in the survey, men taking measurements,
and the camp near "Middle Base." "The Yolo Base Line" refers to Davidson's geodesic measurement of the base lines upon which
all distances in the extensive triangulation of the State of California depend. The first was the Yolo Base line measured
twice by him in 1881, of which this collection is a record, the second was the Los Angeles base line measured three times
in 1888-89. Davidson was also president of the California Academy of Sciences, a Professor of Geodesy and Astronomy, and later
a Regent of the University of California.
Container Listing
:1
Photographs of the Yolo Baseline. California, 1881. W. Suess. Photo.
:4
The Moveable Tent or "Yolo Buggy", 51 feet long under which all measurements were made.
:5
"Yolo Buggy at S.E. at close of second measurement. (The 35 foot brick pier removed, but protecting tower left partly dismantled.
6996 bars in 37 working days. Base 17,486 metres.)
:6
Field comparisons of bars with standard. Side of "Yolo Buggy" raised to show the working.
:7
Moveable tent or "Yolo Buggy" at Plainfield road measuring fractional bar at Fence stone.
:8
Measuring across one of the sloughs. "Dry Sl ough" Trestle, 115 feet long, 22 feet high at footpath, 25 feet at rail.
:9
Camp near middle base, from the Northwest.
:10
Camp near middle base, from the East.
:11
Camp near middle base, from the Northeast.
