A portrait of Urbain Jean Joseph Le Verrier from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Antoine-Jean Letronne from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Paul Marat from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean de Montreal from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Etienne Montucla from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Baptiste Morin from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean-Antoine, abbe Nollet from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Petitot from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Victor Poncelet from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean-Baptiste Tavernier from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean le Rond d' Alembert from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Sylvain Bailly from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Bernoulli from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Charles Burckhardt from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean-Dominique Cassini from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean-Antoine-Claude Chaptal from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean-Antoine-Nicolas de Caritat Condorcet from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Baptiste Joseph Delambre from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean-Baptiste Dumas from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Baptiste Joseph Fourier from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Urbain Jean Joseph Le Verrier from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Paul Marat from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean le Rond d' Alembert from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.

A portrait of Jean Sylvain Bailly from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.