Copy of a Letter from Mr. George Davis, to the Surveyor-General of the Board of Works, Stating the Result of Experiments Made for the Purpose of Ascertaining the Practicability of Doing Away with the Use of Children in the Sweeping of Chimneys, by Means of the Employment of Machinery

Auteur : George Davis

Date de publication : 1839

Éditeur : Non disponible

Nombre de pages : 2