The infancy of Émile Zola was spent in Paris, his father's enterprises compelling the family to remain there till 1843. Throughout 1840 the engineer was preparing plans of his fortification scheme, issuing pamphlets, corresponding with Thiers, and interviewing General Despans-Cubières, Minister of War. He renewed his efforts when Thiers fell from power and was succeeded by Marshal Soult; but he was unable to overcome the stolid indifference of General Dode, the war-office director of fortifications, who, without even examining his plans, reported against them on the ground that the government and the defence committee had made up their minds four years previously with respect to what system should be adopted. As Soult accepted this view of the matter, Zola's efforts again came to nothing. His only consolation was that, early in 1841, when the Paris fortification bill was finally discussed by the legislature, his ideas found supporters in General Schneider and M. Dufaure, a subsequent prime minister of France.[1] A better result attended Zola's invention of an appliance for removing the masses of earth, which, he foresaw, would be thrown up in digging the moat of the Paris rampart. He patented this invention in June, 1841, and after his appliance had been constructed at some works in the Rue de Miromesnil in 1842, it was employed successfully in the excavations at Clignancourt.[2] A few months later the indomitable engineer again turned to his scheme for providing Aix with water. Removing thither with his wife and child, he signed, in April, 1843, a new agreement with the municipality, followed in June by another with the mayor of Le Tholonet, for a large dam was to be constructed near that village, at the entrance of the Infernet gorges. But although Zola's earlier suggestions had now prompted the neighbouring city of Marseilles to cut a canal from Pertuis on the Durance,--an enterprise carried out by a distinguished engineer named Montrichet between 1839 and 1849,--some of the good people of Aix and its vicinity remained uninfluenced by the example, and a long battle ensued.