French pharmacist and agronomist, best remembered as a vocal promoter of the potato as a food source for humans in France and throughout Europe. His many other contributions to nutrition and health included establishing the first mandatory smallpox vaccination campaign (under Napoleon beginning in 1805, when he was Inspector-General of the Health Service) and pioneering the extraction of sugar from sugar beets. Parmentier also founded a school of breadmaking and studied methods of conserving food, including refrigeration. Rare – Authentic signed document. Paris, February 9, 1794. Condition : please see scans. Certificate of Authenticity and lifetime guarantee.