[Index map to portion of Saline County, Illinois, aerial photographs]. [197-?].

Equality Telephone Company.

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Illinois State Geological Survey.

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The first Illinois State Geological Survey lasted from 1851 to 1875. In 1893, the Governor, in a message to the Legislature, recommended that the State Geological Department be placed in charge of the University and that all of its collections be moved to Urbana. The recommendation was approved by the University's Board of Trustees. 1 In 1901 the Board of Trustees appointed a special committee to consider ways and means for the establishment of a geological survey of Illinois. 2 Thi...

Geological survey (U.S.)

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E.W. Glafcke was in charge of a crew during the United States Geological Survey's spirit leveling activities in Wyoming and Utah from 1896 to 1912. From the guide to the United States Geologic Survey photograph collection, 1892-1912, 1898-1902, (Utah State University. Special Collections and Archives) First organized as a branch in 1889, the Topographic Division was established in 1947. From the description of Records of the Topographic Division. (Unknown). World...