Fellows of the American Academy of Arts and Sciences

Robert Lewis Letsinger (July 31, 1921 – May 26, 2014) was an American biochemist and was a professor of chemistry at Northwestern University. He was best known for his research and development of chemical synthesis of DNA.

Daniel Willett Foster (March 4, 1930 – January 25, 2018) was the John Denis McGarry, Ph.D. Distinguished Chair in Diabetes and Metabolic Research and Professor of Internal Medicine at the University of Texas Southwestern Medical School at Dallas. He was Chairman of the Department of Internal Medicine for 16 years. He was a Fellow of the American Academy of Arts and Sciences, a Fellow of the American Association for the Advancement of Science and a member of the Institute of Medicine of the National Academies. He was a Master of the American College of Physicians. He was also a former member of the President's Council on Bioethics.

Charles Lund Black Jr. (September 22, 1915 – May 5, 2001) was an American scholar of constitutional law, which he taught as professor of law from 1947 to 1999. He is best known for his role in the historic Brown v. Board of Education Supreme Court case, as well as for his Impeachment: A Handbook, which served for many Americans as a trustworthy analysis of the law of impeachment during the Watergate scandal.

John Hyslop Steele (15 November 1926 – 4 November 2013) was a British oceanographer who made major contributions to the study of marine ecosystems.

Pierre-Joseph van Beneden FRS FRSE FGS FZS (19 December 1809 – 8 January 1894) was a Belgian zoologist and paleontologist.

Charles Eugene Barrois (21 August 1851 – 5 November 1939) was a French geologist and palaeontologist.

Jaime Benítez Rexach (October 29, 1908 – May 30, 2001) was a Puerto Rican author, academic and politician. He was the longest serving chancellor and the first president of the University of Puerto Rico.

Daniel Roche (26 July 1935 – 19 February 2023) was a French social and cultural historian, widely recognized as one of the foremost experts of his generation on the cultural history of France during the later years of the Ancien Régime. Roche was elected an International member of the American Philosophical Society in 2009.

Benoît Fourneyron (31 October 1802 – 31 July 1867) was a French engineer, born in Saint-Étienne, Loire. Fourneyron made significant contributions to the development of water turbines.
Benoît Fourneyron was educated at the École Nationale Supérieure des Mines de Saint-Étienne, a nearby engineering school that had recently opened. After he graduated in 1816, he spent the next few years in mines and ironworks.
Around this time, a number of French engineers—including some of Fourneyron's former teachers—were starting to apply the mathematical techniques of modern science to the ancient mechanism called the waterwheel.
For centuries, waterwheels had been used to convert the energy of streams into mechanical power, mostly for milling grain. But the new machines of the Industrial Revolution required more power, and by the 1820s there was enormous interest in making waterwheels more efficient.

Jean-Victor Poncelet (French pronunciation: [ʒɑ̃ viktɔʁ pɔ̃slɛ]; 1 July 1788 – 22 December 1867) was a French engineer and mathematician who served most notably as the Commanding General of the École Polytechnique. He is considered a reviver of projective geometry, and his work Traité des propriétés projectives des figures is considered the first definitive text on the subject since Gérard Desargues' work on it in the 17th century. He later wrote an introduction to it: Applications d'analyse et de géométrie.As a mathematician, his most notable work was in projective geometry, although an early collaboration with Charles Julien Brianchon provided a significant contribution to Feuerbach's theorem. He also made discoveries about projective harmonic conjugates; relating these to the poles and polar lines associated with conic sections. He developed the concept of parallel lines meeting at a point at infinity and defined the circular points at infinity that are on every circle of the plane. These discoveries led to the principle of duality, and the principle of continuity and also aided in the development of complex numbers.As a military engineer, he served in Napoleon's campaign against the Russian Empire in 1812, in which he was captured and held prisoner until 1814. Later, he served as a professor of mechanics at the École d'application in his home town of Metz, during which time he published Introduction à la mécanique industrielle, a work he is famous for, and improved the design of turbines and water wheels. In 1837, a tenured 'Chaire de mécanique physique et expérimentale' was specially created for him at the Sorbonne (the University of Paris). In 1848, he became the commanding general of his alma mater, the École Polytechnique. He is honoured by having his name listed among notable French engineers and scientists displayed around the first stage of the Eiffel tower.