Engineers' Surveying Instruments

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Excerpt from Engineers' Surveying Instruments: Their Construction, Adjustment, and UseAn engineer's chain is 100 feet long, each link be ing I foot. This chain is used in surveying railroads, canals, and Where extensive line surveys are being con ducted. It is not infrequently employed in finding areas in acres. It is preferred to the surveyor's chain on account of its greater length, which enables one to work more rapidly and more accurately.When the chain is folded up the links Should not be parallel to each other, but should be crossed in such a manner as to touch each other in the middle, thus pre venting the bending of the links in tying up the chain. See Fig. 1.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.