The friendship, however, endured for the twenty-three years which yet remained of Tait's life.
Tait collaborated with Balfour Stewart in the Unseen Universe, which was followed by Paradoxical Philosophy.
He had ceased to write for the Westminster in 1828; but during the years 1832 and 1833 he contributed many essays to Tait's Magazine, the Jurist, and the Monthly Repository.
He took orders in 1874 and held a curacy at Dartford, in Kent, till 1877, when he became resident chaplain and private secretary to Dr Tait, archbishop of Canterbury, a position which he occupied till Dr Tait's death, and retained for a short time (1882-1883) under his successor Dr Benson.
He married in 1878 Edith, the second daughter of Archbishop Tait, whose Life he eventually wrote (1891).