It is unlikely that any of these texts are still copyrighted due to how old they are. Most are from government publication departments.
Available Formats: Microsoft Word Adobe Acrobat HTML Web Browser	A Reconnaissance Though Southern And Southeastern Nevada, Made In 1869, By First Lieut. Geo. M. Wheeler, Corps Of Engineers, U.S. Army. Published in the year +1,875 Gregorian Calendar. This is a survey and exploration report from one of the most successful USA Army survey teams that swept through the southwest and west United States in the mid-to-late 1800s. The Adobe Acrobat format is the best, as it comes closest to the original document.
Available Formats: Microsoft Word Adobe Acrobat HTML Web Browser	Report Of The Exploring Expedition From Santa Fe, New Mexico, To The Junction Of The Grand And Green Rivers Of The Great Colorado Of The West, In 1859, Under The Command Of Capt. J. N. Macomb, Corps Of Topographical Engineers (now Colonel Of Engineers); With Geological Report By Prof. J. S. Newberry, Geologist Of The Expedition. Washington: Government Printing Office, 1876. Engineer Department U. S. Army. Includes geology, palenontology, and observations of flora and fauna. The Adobe Acrobat version is the best, as it is closest to the original. The AdobeAcrobat file is 2,080,326 bytes. The second-best version is the Microsoft Word version, which is 4,438,565 bytes. These files are large because the index has been rendered as large images to make them easier to read--- my OCR software choaked on the tables.

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