The greater part of the information contained in the work now presented to the public, was collected by the Rev. J. S. Reid, D.D., before his appointment as Professor of Ecclesiastical and Civil History in the University of Glasgow. For the twenty years preceding, his attention had been specially directed to the rise and progress of the Presbyterian Church in Ireland; and he had enjoyed special facilities for becoming acquainted with its condition. He had traveled through most parts of our Northern Province; had gathered up the traditions of the Presbyterian inhabitants; had carefully examined the manuscript records of the Synod of Ulster; and had noted down, in a little volume which he usually carried about with him, every important fact or date which helped to guide him in his investigations. Shortly after his decease, I undertook, at the request of his executors, to complete his unfinished History ; and this manuscript book was put into my hands to assist me in the work. I found that it contained a brief account of the congregations of the Synod of Ulster, arranged in alphabetical order; and as, for many reasons, it appeared very undesirable that the rare knowledge it supplied should be lost to the public, I suggested to the proprietor of M'Comb's Presbyterian Almanac that he should permit me to introduce some extracts from it, year after year, into his well-known annual. He adopted the advice; and thus it has been that for upwards of thirty years past these notices have been continued in that publication. They are now collected together; and, with not a few additions, are to be found in the present volume.