Amongst Locke's correspondents in these years was the celebrated physician, Dr. Sloane, now Secretary of the Royal Society, afterwards created Sir Hans Sloane. In writing to him at the end of the century, evidently in answer to a request, Locke proposes a scheme for rectifying the calendar. Notwithstanding the reformation which had already taken place in many foreign countries, it will be recollected that the English year then began on the 25th of March, instead of the 1st of January, and that, by reckoning the year at exactly 365¼ days, or at 11 m. 14 sec. longer than its actual length, our time lagged ten days behind that of most other European countries, as well as the real solar time. The inconvenience, especially in transactions with foreign merchants, had become very great. The advent of the new century, inasmuch as the centenary year would be counted as a leap-year in England, but not in other countries where the new style or Gregorian calendar prevailed, would add an eleventh day to the amount of discrepancy, and hence the subject was now attracting more than ordinary attention. Locke's remedy was to omit the intercalar day in the year 1700, according to the rule of the Gregorian calendar, as also for the ten next leap-years following, "by which easy way," he says, "we should in forty-four years insensibly return to the new style." "This," he adds, "I call an easy way, because it would be without prejudice or disturbance to any one's civil rights, which, by lopping off ten or eleven days at once in any one year, might perhaps receive inconvenience, the only objection that ever I heard made against rectifying our account." He also suggested that the year should begin, as in most other European countries, on the 1st of January. No change, however, was made till, by an Act of Parliament passed in 1750-51, it was ordered that the year 1752 should begin on the 1st of January, and that the day succeeding the 2nd of September in that year should be reckoned as the 14th. Locke's other correspondence with Sloane shows the interest which he still took in medical matters, and how ready he always was to expend time and thought on attending to the ailments of his poor neighbours at Oates.