In the case of Valentine Jamerai Duval, who ultimately became Professor of Antiquities and Ancient and Modern Geography in the Academy of Luneville, youthful hardships occasioned extraordinary expedients. The son of labouring people, at the age of fourteen he was ignorant of the alphabet. His occupation was that of turkey-keeper, but after an attack of small-pox, which nearly killed him, he wandered through certain parts of Champagne, then in a condition of famine, in search of employment. When he reached the Duchy of Lorraine, he obtained a situation as shepherd, and became acquainted with the hermit, Brother Palimon, whom he helped in his rural labours. In return for these services the hermit gave him instruction, and subsequently he lived as a labourer with the four hermits of St. Anne, studying arithmetic and geography in his leisure moments. His one object then was to obtain books, impossible without money, which, situated as he was, seemed equally unattainable. Finding out, however, that a furrier at Luneville purchased skins, he set snares for wild animals, and by this means realised enough money to procure the books he coveted.
But beyond the self-denial of Curran with his primitive invention for early rising, and the contrivance of Duval for obtaining the needful, is the interesting career of Bernard Palissy, the Potter, who, in addition to his fame as an artist in pottery, was celebrated as a glass painter, naturalist, philosopher, and for his devotion to the Protestant cause in the sixteenth century. Born in 1510, at Chapelle Biron, a poor hamlet near the small town of Perigord, he was brought up as a worker in painted glass, in pursuit of which occupation he travelled considerably, devoting all the spare time of his wanderings to the study of natural history, in which he delighted. Though an ardent student of nature, he yet found opportunity to make himself acquainted with the teaching of Paracelsus, of the alchemists and of the reformers of the Church. He did not settle down till nearly thirty years of age, when he established himself at Saintes as a painter on glass, and surveyor, and then turned his attention to the making of pottery and the production of white enamel, which latter was useless excepting as a covering for ornamental pottery, and at this time Palissy was not sufficiently skilled to make a rough pipkin. Under these circumstances it is not surprising that his wife took exception to the money expended in the purchase of drugs, the buying of pots, and the building of a furnace, as the loss of time told heavily on his limited resources; and it would be perfectly truthful to say that the first things Bernard Palissy produced in the way of pottery were family jars. Mrs. Palissy was undoubtedly very wroth at his going on in this way, more especially because, as is so frequently the case, his family increased as his income decreased, and she succeeded at last in stopping his experiments for a time. He then obtained an appointment as Surveyor to the Government, in which profession he was remarkably proficient, but before very long the old craving for experimenting returned with redoubled vigour, and he again set to work in search of white enamel. The expense incurred was so great that his wife and children became ragged and hungry: nothing daunted, he broke up twelve new earthen pots, hired a glass furnace, and for months continued watching, burning, and baking. At last his eager eyes were gladdened by the sight of a piece of white enamel amidst the bakings. Urged on by this, he felt he must have another furnace; he succeeded in obtaining the bricks on credit, became his own bricklayer's boy and mason, and built the structure himself. On one occasion he spent six days and nights watching his baking clay, sleeping only a few minutes at a time near his fire, but disappointment was all the result. The vessels were spoilt. In desperation he borrowed more money for his experiments, which was consumed in like manner, until at last he was without fuel for the furnace. Insensible to everything but the project on which he was bent, he tore up the palings from the garden, and when these were exhausted he broke up the chairs and tables. His wife and children rushed about frantic, thinking that he had lost his senses, and well they might when they saw the demolition of the furniture followed by the tearing up of the floor. Success ultimately crowned his praiseworthy perseverance, but not until he had devoted sixteen years of unremunerated labour, enduring unexampled fatigue and discouragements.