His wood used up, Palissy was obliged to make arrangements with a potter who lived three miles away, to burn the broken pieces in his furnace. His enthusiasm made others hopeful; so that the promise to pay when white enamel was discovered was readily accepted. To make matters sure of success at this trial, he sent between three and four hundred pieces of earthenware to his neighbor's furnace. Some of these would surely come back with the powder upon them melted, and the surface would be white. Both himself and wife waited anxiously for the return of the ware; she much less hopeful than he, however. When it came, he says in his journal, "I received nothing but shame and loss, because it turned out good for nothing."
Two years went by in this almost hopeless work, then a third,--three whole years of borrowing money, wood, and chemicals; three years of consuming hope and desperate poverty. Palissy's family had suffered extremely. One child had died, probably from destitution. The poor wife was discouraged, and at last angered at his foolishness. Finally the pottery fever seemed to abate, and Palissy went back to his drudgery of glass-painting and occasional surveying. Nobody knew the struggle it had cost to give up the great discovery; but it must be done.
Henry II., who was then King of France, had placed a new tax on salt, and Palissy was appointed to make maps of all the salt-marshes of the surrounding country. Some degree of comfort now came back to his family. New clothes were purchased for the children, and the overworked wife repented of her lack of patience. When the surveying was completed, a little money had been saved, but, alas! the pottery fever had returned.
Three dozen new earthen pots were bought, chemicals spread over them as before, and these taken to a glass-furnace, where the heat would be much greater. He again waited anxiously, and when they were returned, some of the powder had actually melted, and run over the earthenware. This added fuel to the flame of his hope and ambition. And now, for two whole years more, he went between his house and the glass-furnace, always hoping, always failing.
His home had now become like a pauper's. For five years he had chased this will-o'-the-wisp of white enamel; and the only result was the sorrow of his relatives and the scorn of his neighbors. Finally he promised his heart-broken wife that he would make but one more trial, and if this failed, he would give up experimenting, and support her and the children. He resolved that this should be an almost superhuman effort. In some unknown way he raised the money for new pots and three hundred mixtures of chemicals. Then, with the feelings of a man who has but one chance for life, he walked beside the person who carried his precious stock to the furnace. He sat down before the mouth of the great hot oven, and waited four long hours. With what a sinking heart he watched the pieces as they were taken out! He hardly dared look, because it would probably be the old story of failure. But, lo! some were melted, and as they hardened, oh, joy unspeakable, they turned white! He hastened home with unsteady step, like one intoxicated, to tell his wife the overwhelming truth. Surely he could not stop now in this great work; and all must be done in secret, lest other potters learn the art.