GIFT OF THE FALCONET LIBRARY. original: "BIBLIOTH. FALCONET DON." refers to the collection of Camille Falconet (1671–1762), a physician and renowned book collector.
A circular library stamp of the "ROYAL LIBRARY" featuring three fleurs-de-lis at the center. The fleurs-de-lis indicate this manuscript was once part of the French royal collection.

The Soul of Natural Philosophy.

Concerning the Transmutation of Metals, and the True Potable Gold.

By Bernard De Labadie.

Natural Philosophy was the historical term for the study of nature and the physical universe, the precursor to modern science. Potable Gold (aurum potabile) was a legendary alchemical medicine believed to grant eternal youth and cure all diseases.