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2 talks found:

(Click on mtg# for details and minutes)

Rec Mtg# Year Authors Institution Talk title
1 248 1911 Joseph Bertram Umpleby USGS And old erosion surface in eastern Utah, its age and value in time determinations
2 275 1913 Joseph Bertram Umpleby USGS The contact-metamorphic copper deposit at Mackay, Idaho

Joseph Bertram Umpleby was on the Council in 1915
Joseph Bertram Umpleby was Chair of the Program Committee in 1917