Title page of "La Figure de la Terre," by Pierre Bouguer, 1749

Title page of “La Figure de la Terre,” by Pierre Bouguer, 1749. Bouguer was a famous surveyor and geophysicist who surveyed an arc of the meridian near the equator in South America and helped establish that the Earth is an oblate spheroid, in agreement with Sir Isaac Newton’s views. Library Call Number QB291 .B58 1749.

Photo Category: Treasure - Geodesy