- Title: Sketch I Showing the Progress of the Survey in Section No. 9
- Author: A. D. Bache
- Date: 1854
- Medium: Hand-colored lithograph
- Condition: Very Good - issued trifolds, some very minor toning, some wrinkling - not creased
- Inches: 21 1/2 x 7 1/2 [Image]
- Centimeters: 54.61 x 19.05 [Image]
- Product ID: 308154
U. S. Coast Survey
A. D. Bache Superintendent
Showing the progress of the Survey in Section No. 9
1848 to 54
Map of the Texas coast stretching from Matagorda Bay to Sabine Pass. Includes triangulations superimposed on map, labeled by section number and date surveyed. Also includes a sub-sketch showing the progress of the survey of the Rio Grande and vicinity.
Surveyor, scientist, and pioneering oceanographer A. D. Bache (1806-1867) served as the 6th Superintendent of the U.S. Coast Survey. Born in Philadelphia, he came from a prominent political family, and was the great-grandson of Benjamin Franklin. Under his leadership, the Coast Survey’s operations grew significantly, expanding from nine to seventeen states as it surveyed the Gulf and West Coasts. Bache ran meticulous studies relating to ocean currents, tides, and the earth’s magnetic field, endeavors which provided in-depth knowledge about U.S. coastal geography. Thanks to Bache, the Coast Survey evolved into an immense resource for the U.S. government and one of the foremost scientific institutions in the country leading up to the Civil War.