Note 79 — Chapter XXVII
Reading edition
While in the vicinity of St. Andrews I contracted several important friendships, amongst others, with Thomas Duncan, afterwards Professor of Mathematics, and also with Dr. Chalmers, since then so deservedly renowned. We were all three very nearly of the same age, and our friendship only terminated with death, being kept alive by a constant correspondence during more than sixty years. (Bishop Strachan's Charge to his Clergy, June, 1860; page 10.)