Siam was the first field to be taken up as a new enterprise by the Presbyterian Board of Foreign Missions after its establishment by the General Assembly. Until 1831 the Presbyterians in America had functioned chiefly through the A. B. C. F. M. in their foreign work. In that year a few presbyteries west of the Alleghanies organised the Western Foreign Missionary Society, to conduct their own foreign work. Beginning with missions to the Indians (then regarded as “foreign”) they established work in India and Africa in 1833. The direction of its own foreign work by the church was one of the points involved in the division of the Presbyterian Church into the New School and the Old School in 1838. The Old School took over the Western Foreign Mission Society in that year as a nucleus for a new Board of Foreign Missions which their General Assembly established; and that Board has been in continuous operation ever since. In its first year the new Board directed Rev. R. W. Orr to proceed to Bangkok and report on the eligibility of Siam as a field for operation. Mr. Orr reported, recommending not only work among the Chinese but also advocating work for the natives. Accordingly the Presbyterian Board sent out Rev. Wm. Buell and wife, who reached Bangkok in August, 1840, the first missionaries to be sent out by the new organisation. These two remained for some three years, when on account of ill health of Mrs. Buell they were obliged to withdraw; and thereupon the mission was suspended for a time. When, as a result of the opium war, the doors of China were opened, in 1846, both the A. B. C. F. M. and the Baptist society transferred their Chinese workers from Siam to China. The difficulty of getting response from the Siamese had caused their workers to devote their energies largely to the Chinese; and now when this Chinese work was terminated their missions in Siam were greatly weakened both in numbers and in effectiveness. The A. B. C. F. M. retained its Siamese workers until 1849, when it transferred its enterprise to the American Missionary Association, an organisation distinctly of the Congregational Church; but this Association abandoned the field in 1874. In 1868 the Baptist Society gave up all except its work for the Chinese in Bangkok, leaving the Siamese wholly to the Presbyterian Mission. Thus Siam was freed from sectarian rivalry long before modern “comity” was brought into practise. It was at the juncture of withdrawing the major portion of the force to China and leaving the Siamese missions undermanned that the Presbyterian Church undertook to establish anew its mission in Siam, having the native population as the primary objective. To that end it sent out Dr. House and Mr. Mattoon who, together with Mrs. Mattoon, may rightly be regarded as the founders of the permanent work of the Presbyterian Church in Siam. THE VOYAGE