Sir John Floyer, Physician to Queen Anne, seems to have found the golden mean of happiness. He died in 1734; four years previous to which he visited Bishop Hough, at Hartlebury. “Sir John Floyer (writes the Bishop to a friend) has been with me some weeks; and all my neighbours are surprised to see a man of eighty-five, who has his memory, understanding, and all his senses good; and seems to labour under no infirmity. _He is of a happy temper, not to be moved with what he cannot remedy;_ which I really believe has, in a great measure, helped to preserve his health and prolong his days.” This is the grand secret. Sir John wrote a curious Essay on Cold Bathing, among the benefits of which he does not omit long life. Dr. Cheyne, the Scottish physician, of this period, in his well-known Essay, advocates strict regimen for preventing and curing diseases: by milk and vegetable diet he reduced himself from thirty-two stone weight almost a third, recovered his strength, activity, and cheerfulness, and attained the good age of 72. Jeremy Bentham, the eminent philosophical jurist and writer on legislation, died in 1832, in Queen-square-place, Westminster, where he had resided nearly half a century, in his 85th year. Up to extreme old age he retained much of the intellectual power of the prime of manhood, the simplicity and freshness of early youth; and even in the last moments of his existence the serenity and cheerfulness of his mind did not desert him. “He was capable,” says Dr. Southwood Smith, to whom he bequeathed his body for purposes of anatomical science, in the lecture delivered over his remains, “of great severity and continuity of mental labour. For upwards of half a century he devoted seldom less than eight, often ten, and occasionally twelve hours of every day to intense study. This was the more remarkable as his physical constitution was by no means strong. His health during the periods of childhood, youth, and adolescence was infirm; it was not until the age of manhood that it acquired some degree of vigour; but that vigour increased with advancing age, so that during the space of sixty years he never laboured under any serious malady, and rarely suffered even from slight indisposition; and at the age of 84 he looked no older, and constitutionally was not older, than most men are at 60; thus adding another illustrious name to the splendid catalogue which establishes the fact, that severe and constant mental labour is not incompatible with health and longevity, but conducive to both, provided the mind be unanxious and the habits temperate.