In 1649 the Pascal family left Paris for Auvergne, and seem to have remained there for about a year and a half. Madame Périer says nothing of this visit, so far as her brother is concerned, beyond the fact that he accompanied Jacqueline and her father. The likelihood, however, is, that the visit was in some degree prompted by a regard for Pascal’s health. He had made in Paris some progress towards recovery, notwithstanding the severity of his treatment. But he was still far from well, and it was judged necessary, “in order to re-establish him entirely, that he should abandon every sort of mental occupation, and seek, as much as he could, opportunities of amusing himself.” Her brother, she adds, was very reluctant to take this advice, “because he saw its danger.” At length, however, he yielded, “considering himself obliged to do all he could to restore his health, and because he thought that trivial amusements could not harm him. So he set himself on the world.” When this definite change in Pascal’s life began is left uncertain, but there are indications that he had largely abandoned his studies in 1649 and the following year. During these years there is nothing from his pen. The interval between the “recital” of the experiments on the Puy de Dôme (1648), and his letter to M. Ribeyre, 12th July 1651, is blank in any record of scientific or literary labour. This is not conclusive, of course, that he was idle; but taken in connection with the remarks of his sister, and the retirement to Auvergne, it suggests that the family may have sought there, in rural isolation and domestic reunion, the means of entirely withdrawing Pascal from his severer studies, and the scientific companions who were constantly prompting them in Paris. It may be, also, that the father sought the means of withdrawing Jacqueline from the neighbourhood of Port Royal, and from the equally exciting associations to her connected with that neighbourhood.