During the eight years of his Glasgow incumbency many things happened, worthy to be noticed even in a short biography like this. First of all, his fame as a pulpit orator reached its climax; a climax never surpassed and seldom equalled in the whole annals of the pulpit. In the next place, his ideas of the advantages of the parochial system, brought from Kilmany, were matured, expanded, and practically applied, with results that demonstrated in a wonderful way their Christian wisdom and excellence. Further, as an author, he rose to a higher platform; his astronomical and commercial discourses, when published, spread his fame far and wide; and a quarterly publication which he issued on the _Civic and Christian Economy of Large Towns_ showed the zeal and wisdom with which he grappled with his parochial obligations. Meanwhile, in his closet, he was intensely occupied with the great problem of his personal spiritual life; ever and anon placing himself in the immediate presence of God, detecting and deploring his infirmities and deficiencies, striving to walk with God in every undertaking, duty, and recreation; trying hard to resist the subtle influence of human applause; and longing much for that absolute consecration which would efface self, and make God all in all. Still further, he was most assiduous in affectionate duty to his friends and family; correspondence with father, mother, wife, children, and friends went on without ceasing, even in the busiest periods of public life, and always with an eager desire to promote their highest good. And many an important call to other spheres of labour arose from time to time to distract his attention; now he was offered this important charge, now that; at one time he was entreated to become a candidate for the natural philosophy chair at Edinburgh, and at another for that of moral philosophy; now he was called to London to preach a missionary sermon, and at another time he found it necessary to make a long tour through England to acquire information about the working of the poor-law system. That he was able to sustain life under the prodigious pressure of all these varied engagements cannot but surprise us, and cannot but excite our admiration of the remarkable physical and mental energy that was able to endure it. But it had its effects; and one of these was, that feeling himself unable to sustain the pressure of such an accumulation of burdens, and desirous to prosecute more vigorously his work as an author, he accepted, in 1823, the unanimous offer made to him of the chair of moral philosophy at St. Andrews, though the sphere in itself was absolutely insignificant, and the salary not more than £300 a year.