On February 13, 1873, he and Crossett began a tour that lasted about three months and carried them far into the interior of Shantung. They traveled in all about a thousand miles, and preached and sold books in over a hundred cities and towns. Once a man threatened Mateer with a manure fork, and once he was struck by a stone thrown in a crowd by some unknown miscreant. The usual epithet for foreigners saluted them; but, on the whole, they escaped any serious molestation. On this trip they visited Tai An, the great temple, and the sacred mountain, and ascended the steps to its summit. For a week they remained preaching in the temple to the crowds. They also went to the tomb of Confucius, and to the magnificent temple dedicated to the sage, in that neighborhood. At that date not many foreigners had seen these Chinese shrines; but now they have been so often described that it would scarcely be justifiable to cite the full and interesting record made by Mateer in his Journal as to what he saw and did at these places. Thence they proceeded as far as the capital, Tsinan fu, where Mateer remained for eighteen days, while Crossett went on a journey still a couple of hundred miles farther to the north and west, in company with an agent of the Scottish Bible Society, which had been canvassing the province for six or eight years. At the close of this tour they regarded the work of book-selling for most of Shantung as so far completed as henceforth to deserve a more subordinate place. During part of his stay at the capital Mateer preached and sold books, and part of the time he remained in his hired lodgings to receive visitors, of whom he had not a few. To him one of the interesting sights was the Yellow River. On their return journey they took in Tsingchow fu, and also Ping Tu, where the Christians then were terrified by persecution. After this he made only one more exclusively evangelistic itineration. The care of the infant churches and other duties called him to continue to go longer and shorter distances from home; and in connection with this he did a great deal of preaching here and there by the way. For instance, in 1881 he attended a meeting of the Mission at Tsinan fu, and incidentally he preached in a hundred and sixty-three villages. It was travel for the specific purpose of carrying the gospel into wholly unevangelized regions that he ceased to perform. In a friendly letter written to his cousin, Mrs. Gilchrist, as early as June 28, 1875, he said: The first years I was in China I traveled a good deal, and preached and sold books in the streets. I have not done so much of it the last two or three years, having been more closely engaged in my school. The younger men in the mission have been doing it chiefly. I am preparing a number of books for the press, and this has taken a good deal of time, and will take time in the future.