Text/HTML
Login
Menu
Collections
About
Submit
FAQs
Search Open/Close
Open/Close Header Details
Search
Determining the Elevations
Menu Open/Close
Coast-Geodetic-Survey
Geodesy
Determining the Elevations - Leveling a Continent
Geodesy
Leveling across Isthmus of Panama.
Download
.jpg
(742.78 KB)
Level crew.Burger, Boone, Libby, Babcock, Peterson.Level crew of W. H. Burger
Download
.jpg
(471.01 KB)
Level crew with velocipede.Holtzmann on car.Level party of B. E. Tilton
Download
.jpg
(524.38 KB)
Taking a backsight.Level party of W. H. Burger
Download
.jpg
(707.82 KB)
Rodman holding rod vertical during observations.
Download
.jpg
(652.89 KB)
Rear rodman passing front rodman, recorder pulling.Passing the mallet so rear rodman can drive spike to steady rod.Level crew of W. H. Burger
Download
.jpg
(725.97 KB)
Observer riding ahead.Level crew of W. H. Burger
Download
.jpg
(686.14 KB)
W. H. Burger observing.Note standing straight up to observe - minimizing fatigue.Level crew of W. H. Burger
Download
.jpg
(642.79 KB)
First order leveling.Mechanized leveling with velocipede.Party of M. E. Lutz
Download
.jpg
(488.55 KB)
First order leveling.Mechanized leveling with velocipede.Party of M. E. Lutz
Download
.jpg
(528.56 KB)
First order leveling.Mechanized leveling with velocipede.Party of M. E. Lutz
Download
.jpg
(512.65 KB)
Showing how line of sight clears recorder with inclined tripod.Mechanized leveling with velocipede.Party of J. D. Crichton
Download
.jpg
(361.31 KB)
Level setup on motor velocipede.Level center-mounted on velocipede
Download
.jpg
(926.98 KB)
Level setup with inclined tripod on motor velocipede.J. D. Crichton observing.Party of J. D. Crichton
Download
.jpg
(339.58 KB)
Crew with motor velocipedes and inclined level.Party of J. D. Crichton
Download
.jpg
(354.85 KB)
Recording instrument mounted on left side of velocipede.Party of J. D. Crichton
Download
.jpg
(380.19 KB)
Working along the Southern Pacific Railroad.Rodman at benchmark.Observing crew even with engine on right.Velocipede removed from tracks.Level party of C. A. Egner
Download
.jpg
(380.62 KB)
Observing from level mounted on velocipede.Level center-mounted on velocipede.Crossing trestle on Southern Pacific Railroad.Level party of C. A. Egner
Download
.jpg
(295.15 KB)
Level crew with the tools of the trade.Level party of Caspar Durgin
Download
.jpg
(345.41 KB)
Level crew with the tools of the trade.Sub-party of H. W. Hough.Level party of H. W. Hough
Download
.jpg
(426.09 KB)
1
2
3
4
5
Next
Last
Enter Title
Back To Top