Keywords: Jean Baptiste Joseph Delambre.jpg Jean-Baptiste Joseph Delambre - French mathematician and astronomer http //www sil si edu/digitalcollections/hst/scientific-identity/fullsize/SIL14-D2-17a jpg 1820 Julien Leopold Boilly 1796-1874 PD-Art Jean-Baptiste Joseph Delambre Julien LĂ©opold Boilly |