Susanna Phelps Gage Susanna Phelps Gage Susanna Phelps Gage (1857–1915) was an American embryologist and comparative anatomist. She initially worked on the anatomy of small animals and humans, later shifting into neurology to study the embryological development of the brain and the anatomy of the human nervous system. She also developed a new and widely adopted method for making anatomical teaching models out of paper rather than wax. Although Susanna Phelps Gage was a respected embryologist and camparative anatomist, her work was often ignored. Like most other women scientists of the late 19th and early 20th centuries who were married to scientists, Gage's
Paris in the 18th century the edge of the city; the Antony candle factory and a large factory making printed cotton fabrics, directed by the German-born Christophe-Philippe Oberkampf at Jouy-en-Josas, ten miles from the center of the city. Opened in 1762, this plant was one of the most modern factories in Europe; at its peak in 1774, it employed two thousand workers and produced sixty four thousand pieces of fabric. In the second half of the 18th century, new scientific discoveries and new technologies changed the scale of Paris industry. Between 1778 and 1782, large steam engines were installed at Chaillot and "Gros-Caillou" to pump