IN the month of November of the year 1862, a young German Catholic of great distinction arrived in Paris to pursue his course in the College of France. Faithful, according to the traditional usage of his country, to make the Sign of the Cross before and after meals, he, on the first day, became the wonder of his school-companions. The next day, in virtue of the freedom of worship, he was the object of their mockeries. In one of his visits he begged us to tell him what we thought of the practice, of which his companions were trying to make him ashamed, and of the Sign of the Cross in general. The following letters are intended as an answer to those two questions.