Report of the Director for 1929

von Gregory, Herbert E.
Veröffentlicht 1930

Report of the Director for 1930

von Gregory, Herbert E.
Veröffentlicht 1931

Geology of the Navajo country : a reconnaissance of parts of Arizona, New Mexico, and Utah

von Gregory, Herbert E.
Veröffentlicht 1917

Geology of the Navajo country : a reconnaissance of parts of Arizona, New Mexico, and Utah

von Gregory, Herbert E.
Veröffentlicht 1917

The gravels at Cuzco, Peru

Veröffentlicht in The investigation of the prehistoric human remains found near Cuzco, Peru, in 1911 (1913)

˜Theœ Navajo Country : a geographic and hydrographic reconnaissance of parts of Arizona, New Mexico, and Utah

von Gregory, Herbert E.
Veröffentlicht 1916

The La Paz (Bolivia) Gorge : results of the Peruvian expedition of 1912, under the auspices of Yale university, and the National geographic magazine

von Gregory, Herbert E.
Veröffentlicht in Yale Peruvian expeditions, 1911-1915. Publications ; no. 20 (1913)

The rodadero (Cuzco, Peru) : a fault plane of unusual aspect

von Gregory, Herbert E.
Veröffentlicht in American journal of science , Vol. 37, April 1914 (1914)

Geology and geography of the Zion Park region, Utah and Arizona : a comprehensive report on a scenic and historic region of the southwest

von Gregory, Herbert E.
Veröffentlicht 1950

Report of the Director for 1936

von Gregory, Herbert E.
Veröffentlicht 1937

Geologic sketch of Titicaca Island and adjoining areas : results of the Peruvian Expedition of 1912 under the auspices of Yale University, and the National Geographic Society

von Gregory, Herbert E.
Veröffentlicht in The American Journal of Science; Series 4, Vol. 36, Nr. 213, September 1913 (1913)

Report of the Director for 1932

von Gregory, Herbert E.
Veröffentlicht 1933

Mangarevan expedition : report of the Director for 1934

Veröffentlicht 1935

Bibliography of the geology of Connecticut : by Herbert Ernest Gregory

von Gregory, Herbert E.
Veröffentlicht 1907

Geology and geography of the Zion Park region Utah and Arizona : a comprehensive report on a scenic and historic region of the Southwest

von Gregory, Herbert E.
Veröffentlicht 1950

Geologic reconnaissance of the Ayusbamba (Peru) fossil beds

von Gregory, Herbert E.
Veröffentlicht in American journal of science, v. 37, February 1914 (1914)

The Navaja Country : a geographic and hydrographic reconnaissance of parts of Arizona, New Mexico, and Utah

von Gregory, Herbert E.
Veröffentlicht 1916

<<The>> geology and geography of the Paunsaugunt region Utah : a survey of parts of Garfield and Kane Counties

von Gregory, Herbert E.
Veröffentlicht 1951

Ground water in the Hartford, Stamford, Salisbury, Willimantic and Saybrook areas, Connecticut

von Gregory, Herbert E.
Veröffentlicht 1916

Contributions to the geology of Maine

von Williams, Henry Shaler
Veröffentlicht 1900