It is grown largely in the departments of Nord and Pas-de-Calais and in those of the Seine basin, the southern limit of its cultivation being roughly a line drawn from Bordeaux to Lyons.
Flax is cultivated chiefly in the northern departments of Nord, Seine- Infrieure, Pas-de-Calais, Ctes-du-Nord, hemp in Sarthe, Morbihan and Maine-ct-Loire.
The three principal regions for the production of tobacco are the basin of the Garonne (Lot-et-Garonne, Dordogne, Lot and Gironde), the basin of the Isre (Isre and Savoie) and the department of Pas-de-Calais.
The environs of Creil (Oise) and Chteau-Landon (Seine-et-Marne) are noted for their freestone (pierre de taille), which is also abundant at Euville and Lrouville in Meuse; the production of plaster is particularly important in the environs of Paris, of kaolin of fine quality at Yrieix (1-Jaute-Vienne), of hydraulic lime in Ardche (Le Teil), of lime phosphates in the department of Somme, of marble in the departments of HauteGaronne (St Beat), Hautes-Pyrnes (Campan, Sarrancolin), Isre and Pas-de-Calais, and of cement in Pas-de-Calais (vicinity of Boulogne) and Isre (Grenoble).
Paving-stone is supplied in large quantities by Seine-et-Oise, and brick-clay is worked chiefly in Nord, Seine and Pas-de-Calais.
