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Henry Stephens Washington


Henry Stephens Washington, American petrologist. Decorated Cavalier Order Crown of Italy.


Washington, Henry Stephens was born on January 15, 1867 in Newark, New Jersey, United States. Son of George and Eleanor P. (Stephens) Washington.


Bachelor of Arts, Yale, 1886. A.M., 1888; Doctor of Philosophy., Leipzieg, 1893. Post-graduate studies, Yale, Leipzig, and American School Classical Studies (Athens).


Assistant in physics, Yale, 1886-1888. Excavations in Greece, 1889-1894. Assistant in mineralogy, Yale, 1895-1896.

Geological, volc., petrol. investigations in Greece, Asia Minor, Italy, Spain, Brazil, Hawaiian Islands, and United States, and chemical study of igneous rocks and minerals. Consultant mining geologist, 1906-1912. Board of managers Geological Survey New Jersey, 1909-1914.

With Geophysical Laboratory, Carnegie Institution of Washington, since 1912. Chemical associate and scientific attache American Embassy, Rome, 1918-1919. Vice chairman of the section volcanology, International Geophysical Union.

Chairman American Geophysical Union, 1927-1929.


  • Author: Chemical Analyses of Igneous Rocks, 1903, 1917. Manual of the Chemical Analysis of Igneous Rocks, 1904. The Roman Comagmatic Region, 1906.

    Joint Author: Quantitative Classification of Igneous Rocks. 1903. Contributor of articles on petrol., mineral, and archæol. subjects in scientific journals, 1887—.


Married Martha Rose Beckwith, October 25, 1893.

George Washington

Eleanor P. (Stephens) Washington

Martha Rose Beckwith