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Report on the United States and Mexican Boundary Survey, Vol. 1: Made Under the Direction of the Secretary of the Interior (Classic Reprint)

Report on the United States and Mexican Boundary Survey, Vol. 1: Made Under the Direction of the Secretary of the Interior (Classic Reprint)

William Hemsley Emory
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Excerpt from Report on the United States and Mexican Boundary Survey, Vol. 1: Made Under the Direction of the Secretary of the Interior

The portion of the boundary which the commissioner designed to run first, consisted of a straight line from a point on the Pacific ocean, one marine league south of the port of San Diego, to the junction of the Gila and Colorado. The most obvious way of determining the direction of this line was to connect the two points by triangulation, and in this way ascertain their relative positions on the face of the earth, and compute the azimuth of the line joining them. But the character of the intervening country made it impossible to pursue this mode of operating, when the time and means at our disposal were considered. Triangulation is the most accurate, but the slowest and most expensive method of surveying, even in old settled countries, where the stations to be selected are easily accessible in wagons.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Pages
602
Format
Paperback
Publisher
Forgotten Books
Release
May 01, 2018
ISBN
1527716775
ISBN 13
9781527716773

Report on the United States and Mexican Boundary Survey, Vol. 1: Made Under the Direction of the Secretary of the Interior (Classic Reprint)

William Hemsley Emory
0/5 ( ratings)
Read Download
Excerpt from Report on the United States and Mexican Boundary Survey, Vol. 1: Made Under the Direction of the Secretary of the Interior

The portion of the boundary which the commissioner designed to run first, consisted of a straight line from a point on the Pacific ocean, one marine league south of the port of San Diego, to the junction of the Gila and Colorado. The most obvious way of determining the direction of this line was to connect the two points by triangulation, and in this way ascertain their relative positions on the face of the earth, and compute the azimuth of the line joining them. But the character of the intervening country made it impossible to pursue this mode of operating, when the time and means at our disposal were considered. Triangulation is the most accurate, but the slowest and most expensive method of surveying, even in old settled countries, where the stations to be selected are easily accessible in wagons.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Pages
602
Format
Paperback
Publisher
Forgotten Books
Release
May 01, 2018
ISBN
1527716775
ISBN 13
9781527716773

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