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41518-Thumbnail Image.png
ContributorsDarton, Nelson Horatio (Author) / Fred Harvey (Publisher)
Created1917
DescriptionBooklet describing a geological survey of the Grand Canyon. Four editions: 1917, 1929, 1936, 1950.
41338-Thumbnail Image.png
ContributorsBoyce, Jesse L. (Author)
Created1923-08-02
Description

Letter from Jesse L. Boyce to Carl Hayden stating there is 30 tons of dynamite located in the Grand Canyon near tourist sites.

41334-Thumbnail Image.png
ContributorsBoyce, Jesse L. (Author)
Created1923-08-18
Description

Letter from Jesse L. Boyce to Carl Hayden stating that the Director of the National Park Service will order Colonel Crosby to remove the dynamite from the park.