The Historical World's Columbian Exposition And Chicago Guide ... Illustrated From Official Drawings
The Historical World's Columbian Exposition And Chicago Guide ... Illustrated From Official Drawings
Morgan, Horace H. (Horace Hills)
The book The Historical World's Columbian Exposition And Chicago Guide ... Illustrated From Official Drawings was written by author Morgan, Horace H. (Horace Hills) Here you can read free online of The Historical World's Columbian Exposition And Chicago Guide ... Illustrated From Official Drawings book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Historical World's Columbian Exposition And Chicago Guide ... Illustrated From Official Drawings a good or bad book?
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It will be 250 miles long; 33 miles shorter than any route existing between the two cities. The line will be connected with the United States Government surveys at this point and will connect therewith on the top of the old water-tower in this city, and hence will be connected mth all of the United States Mississippi river triangulation stations. It will end on the Shot-tower in Chicago, and wiU therefore be connected with the Coast and United States Geodetic Lake Surveys. Chief Engineer Hughes... estimates that will it require 50 days to run the line. Chief Engineer Hughes began the work of loqating the starting point this morning. He began from the top of the Water-tower, sending the balance of his force across the river. The Washington University instruments will be used and Prof. Nipher will assist in taking the obser- vations. It will probably require five days to locate the starting point The calculations must be absolutely accu- rate. If there is an error of 1-64 of one inch in the measurements at the starting point, the line would be five miles out of the way at Chicago.
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