A Copenhague, Höecke, 1784. 4to. Uncut in blank wrappers. Unopened on fine paper. 32 pp.
First edition. ""In 1775 the Academy offered a prize of 4000 livres for a process for procuring an abundant supply of salpetre, the announcement being written by Lavoisier. Altogether 66 papers were received and the prize was finally awarded in 1782 to the brothers Thouvenel, who gave a full account of nitre plantation."" (Partington III:p. 466).