Article Gericke, Hans Otto (2000)
Nassformsteine - Nasspresssteine - Briketts. Aus der Frühgeschichte der Braunkohlenformsteine in Mitteldeutschland. Technikgeschichte: Beiträge zur Geschichte der Technik und Industrie (p. 177). (/isis/citation/CBB000101451/) unapi

Book Burnett, D. Graham (2000)
Masters of All They Surveyed: Exploration, Geography, and a British El Dorado. (/isis/citation/CBB000101658/) unapi

Book C. Wylie Poag (1999)
Chesapeake Invader. (/isis/citation/CBB535999160/) unapi

Thesis Greco, Diane (1999)
Finding a Form: The Study of Terrestrial Magnetism at Göttingen, 1818--1839. (/isis/citation/CBB001562716/) unapi

Article Thom, René (1999)
Aristote topologue [Aristotle topologist]. Revue de Synthèse (p. 39). (/isis/citation/CBB000111308/) unapi

Article Young, Davis A. (1999)
The Emergence of the Diversity of Igneous Rocks as a Geological Problem: Part One - Early Speculations. Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 51). (/isis/citation/CBB000110982/) unapi

Book Frölich, François; Schubnel, Henri-Jean (1999)
Les âges de la terre. (/isis/citation/CBB000750315/) unapi

Article Arnold, Lois B. (1999)
Becoming a Geologist: Florence Bascom in Wisconsin, 1874-1887 (Part 1 of 2). Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 159). (/isis/citation/CBB000111707/) unapi

Article Young, Davis A. (1999)
The Rise of the Theory of Differentiation in Igneous Petrology (Part 2 of 2). Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 295). (/isis/citation/CBB000110981/) unapi

Book Scarth, Alwyn (1999)
Vulcan's Fury: Man Against the Volcano. (/isis/citation/CBB000101125/) unapi

Essay Review Baker, Victor R.; Greene, Mott T.; Oreskes, Naomi (1999)
Focus Book: Naomi Oreskes, The Rejection of Continental Drift: Theory and Method in American Earth Science. Earth Sciences History: Journal of the History of the Earth Sciences Society. (/isis/citation/CBB000110016/) unapi

Article Morey, G. B (1999)
Newton Horace Winchell, the George Armstrong Custer Expedition of 1874, and the “Discovery” of Gold in the Black Hills, Dakota Territory, U. S. A.. Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 78). (/isis/citation/CBB000111716/) unapi

Article Bork, Kennard B. (1999)
Correspondence as a Window on the Development of a Discipline: Brongniart, Cleaveland, Silliman and the Maturation of Mineralogy in the First Decades of the Nineteenth Century. Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 198). (/isis/citation/CBB000111709/) unapi

Article Camardi, Giovanni (1999)
Charles Lyell and the Uniformity Principle. Biology and Philosophy (p. 537). (/isis/citation/CBB000111711/) unapi

Article VanAller Hernick, Linda (1999)
Silas Watson Ford: A Major but Little-Known Contributor to the Cambrian Paleontology of North America. Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 246). (/isis/citation/CBB000111723/) unapi

Article Schöder, Wilfried (1999)
Were Noctilucent Clouds Caused by the Krakatoa Eruption? A Cast Study of the Research Problems before 1885. Bulletin of the American Meteorological Society (p. 2081). (/isis/citation/CBB000101419/) unapi

Book Kertz, Walter; Kertz, Ruth; Glaßmeier, Karl-Heinz (1999)
Geschichte der Geophysik. (/isis/citation/CBB000600016/) unapi

Book Frankel, Charles (1999)
The End of the Dinosaurs: Chicxulub Crater and Mass Extinctions. (/isis/citation/CBB000111880/) unapi

Article Merriam, D. F (1999)
“Plains-type Folds” in the Midcontinent Region (U. S. A. ): Chronicling a Concept. Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 264). (/isis/citation/CBB000111885/) unapi

Article Ausich, William I.; Sevastopulo, George D.; Torrens, Hugh S. (1999)
Middle nineteenth-century crinoid studies of Thomas Austin, Sr. and Thomas Austin, Jr.: Newly discovered unpublished materials. Earth Sciences History: Journal of the History of the Earth Sciences Society (p. 180). (/isis/citation/CBB000111708/) unapi