The Professor also contributed to various journals and encyclopædias many important articles, chiefly on historical topics relating to Scotland, which, if collected, would form a volume of miscellaneous papers of great interest and value. The most important of these are included in the subjoined list: In the 'British and Foreign Evangelical Review,' January 1872, "Our Scottish Reformation: Its Distinctive Characteristics and Present-Day Lessons," pp. 87-128; October 1875, "Dr Merle D'Aubigné on the Reformation in Scotland," pp. 736-760; October 1876, "Killen's Ecclesiastical History of Ireland," pp. 713-741: in the 'Catholic Presbyterian,' March 1879, "Calvin and the Psalmody of the Reformed Churches": in the 'Scottish Church,' November 1886, "St Andrews in Covenanting Times": in the 'Year-Book of the Church of Scotland,' 1886, "Brief Sketch of the History of the Reformed Church of Scotland": in 'St Giles' Lectures,' First Series, 1880-81, "Pre-Reformation Scotland"; and in Fourth Series, 1883-84, "The Primitive or Apostolic and Sub-Apostolic Church," being the first of the lectures entitled, "The Churches of Christendom." To Dr Schaff's Encyclopædia he contributed separate articles on "St Columba," "The Culdees," "Patrick Hamilton," "Iona," and "The Keltic Church"; and to the 'Presbyterian and Reformed Review,' published at Philadelphia, he contributed a review of Dr Hume Brown's 'John Knox.' Besides many Reports on various matters presented to the General Assembly, he issued for special purposes a "Statement regarding the Eldership," and a "List of Acts of the Scottish Parliament, and of Acts, Overtures, and Resolutions of the General Assembly of the Church of Scotland, adopted at various times for the Acknowledgment of the True Reformed Protestant Religion, the Maintenance of Sound Doctrine, and the Subscription of the Confessions of Faith of 1560 and 1647." When at Geneva, on one of his visits to the Continent, he prepared for private circulation, from the original, which is still preserved among the historical treasures in the Hotel de Ville, "Livre Des Anglois, or Register of the English Church at Geneva under the pastoral care of Knox and Goodman, 1555-1559," with a Prefatory Notice and a Facsimile of pp. 49, 50. To this list of his minor works may be added a sermon on "The Unsearchable Riches of Christ," published in 1879.