With all this burden of work pressing on him, it was a relief when the annual holiday came round and he could get away from it. But this holiday, too, was usually of a more or less strenuous character, and embraced large tracts of country either at home or, more frequently, on the Continent. On these tours his keen human interest asserted itself. He loved to visit places associated with great historic events, or that suggested to him reminiscences of famous men and women. And the actual condition of the people, how they lived, and what they were thinking about, interested him deeply. He spoke to everybody he met, in the train, in the steamboat, or in hotels, in fluent if rather "bookish" German, in correct but somewhat halting French, or, if it was a Roman Catholic priest he had to deal with, in sonorous Latin. And, without anything approaching cant or officiousness, he always tried to bring the conversation round to the subject of religion--to the state of religion in the country in which he was travelling, about which he was always anxious to gain first-hand information, and, if possible and he could do it without offence, to the personal views and experiences of those with whom he conversed. He rarely or never did give offence in this respect, for there was never anything aggressive or clamorous or prying in his treatment of the subject. On his return to Berwick his congregation usually expected him to give them a lecture on what he had seen, and the MSS. of several of these lectures, abounding in graphic description and in shrewd and often humorous observation of men and things, have been preserved. It must suffice here to give an extract from one of them on a tour in the West of Ireland in 1864, illustrating as it does a curious phase of Irish social life at that time. Dr. Cairns and a small party of friends had embarked in a little steamer on one of the Irish lakes, and were taking note of the gentlemen's seats, varied with occasional ruins, which were coming in view on both sides.