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United States Geological Exploration of the Fortieth Parallel (1867-1881)

The U.S. Geological Exploration of the Fortieth Parallel took place over five seasons, traveling through California, Nevada, Utah, and Colorado to map its topography, and discover its resources during ...
Nature

Microscopical Petrography

To the massive and important series of volumes in which the Report of the Exploration of the Fortieth Parallel has been published the Engineer Department of the United States has just added a sixth ...
The New York Times

A NATIONAL RAILWAY.; CONVENTION IN SPRINGFIELD, ILL. THE SUGGESTED ROUTE ALONG THE FORTIETH PARALLEL RESOLUTIONS ADOPTED.

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Science News

Rocks of the Fortieth Parallel: “A Classic of Science”

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...
Nature

United States Geological Exploration of the Fortieth Parallel

THE important survey of a portion of the north-western states of America, which was commenced by Clarence King and his able assistants in 1867, has now, after ten years of arduous labour, been brought ...