_16th-Century Theologians._--In France, as in all other countries, the Reformation was an essentially popular movement, though from special causes, such as the absence of political homogeneity, the nobles took a more active part both with pen and sword in it than was the case in England. But the great textbook of the French Reformation was not the work of any noble. Jean Calvin's _Institution of the Christian Religion_ is a book equally remarkable in matter and in form, in circumstances and in result. It is the first really great composition in argumentative French prose. Its severe logic and careful arrangement had as much influence on the manner of future thought, both in France and the other regions whither its widespread popularity carried it, as its style had on the expression of such thought. It was the work of a man of only seven-and-twenty, and it is impossible to exaggerate the originality of its manner when we remember that hardly any models of French prose then existed except tales and chronicles, which required and exhibited totally different qualities of style. It is indeed probable that had not the _Institution_ been first written by its author in Latin, and afterwards translated by him, it might have had less dignity and vigour; but it must at the same time be remembered that this process of composition was at least equally likely, in the hands of any but a great genius, to produce a heavy and pedantic style neither French nor Latin in character. Something like this result was actually produced in some of Calvin's minor works, and still more in the works of many of his followers, whose lumbering language gained for itself, in allusion to their exile from France, the title of "style refugie." Nevertheless, the use of the vulgar tongue on the Protestant side, and the possession of a work of such importance written therein, gave the Reformers an immense advantage which their adversaries were some time in neutralizing. Even before the _Institution_, Lefevre d'Etaples (1455-1537) and Guillaume Farel (1489-1565) saw and utilized the importance of the vernacular. Calvin (1509-1564) was much helped by Pierre Viret (1511-1571), who wrote a large number of small theological and moral dialogues, and of satirical pamphlets, destined to captivate as well as to instruct the lower people. The more famous Beza (Theodore de Beze) (1519-1605) wrote chiefly in Latin, but he composed in French an ecclesiastical history of the Reformed churches and some translations of the Psalms. Marnix de Sainte Aldegonde (1530-1593), a gentleman of Brabant, followed Viret as a satirical pamphleteer on the Protestant side. On the other hand, the Catholic champions at first affected to disdain the use of the vulgar tongue, and their pamphleteers, when they did attempt it, were unequal to the task. Towards the end of the century a more decent war was waged with Philippe du Plessis Mornay (1549-1623) on the Protestant side,