Louis-Étienne-François HÉRICART DE THURY
Rapport fait à la Société d'encouragement pour l'industrie nationale, au nom du Comité des arts mécaniques, sur le bocard vaporisateur des poudres éthérées, de M. Auger, Fabricant de chocolats de la Cour ; par M. le Vicomte Héricart de Thury, Maître des Requêtes, Ingénieur en chef au Corps royal des Mines, Officier de la Légion-d'Honneur[Report to the Society for the Encouragement of National Industry, submitted on behalf of the Committee for the Mechanical Arts, on Mr Auger’s vapour-mill for ethereal powders, Mr Auger being Chocolate Manufacturer to the Court; by Viscount Héricart de Thury, Maître des Requêtes, Chief Engineer in the Royal Corps of Mines, Officer of the Légion d’Honneur]
Imprimerie de Madame Huzard|Paris 1820|20.8 x 26.5 cm|Relié
First edition, issued in a very small number as an offprint from the Bulletins de la Société d'encouragement pour l'industrie nationale, t. CXCI et CXCII.
Not recorded by Quérard.
The pamphlet is illustrated with three folding technical plates, engraved by Normand fils.
Bradel binding in paper-covered boards entirely clad in blue paper, with a black vertical spine label showing minor losses; a modern binding.
The work describes the apparatus devised by the chocolatier Auger, which made it possible to reduce any animal, vegetable or mineral substance to "poussières impalpables, aériformes ou éthérées".
Héricart de Thury, Chief Engineer in the Royal...
€800