The great contemporary and colleague of Oersted in the demonstration of the intimate relations between magnetism and electricity who was quite as outspoken as the Danish scientist in his recognition of the relations of science and religion, was the Frenchman Ampere, whose name was chosen as a term for one of the units of electrical science, because of his great original work in extending our knowledge of electricity. This choice of his name was made by an international congress of scientists who felt that he deserved this very great honor. Ozanam, to whose thoroughly practical Christianity while he was professor of foreign literatures at the University of Paris we owe the foundation of the Conferences of St. Vincent de Paul, which so long anticipated the "settlement work" of the modern time and have done so much for the poor in large cities ever since, who was very close to Ampere and indeed lived with him for a while, said that, no matter where conversations with him began, they always led up to God. The great French scientist and philosopher used to take his broad forehead between his hands after he had been discussing some specially deep question of science or philosophy and say: "How great is God, Ozanam; How great is God and how little is our knowledge." Of course this has been the feeling of most profound thinkers at all times. St. Augustine's famous vision of the angel standing by the sea emptying it out with a teaspoon, which has been rendered so living {19} for most of us by Botticelli's great picture, is but an earlier example of the same thing. One of Ampere's greatest contemporaries, Laplace, reechoed the same sentiment, perhaps in less striking terms, when he declared that "What we know is but little; while what we do not know is infinite." Writing of Ampere after his death Ozanam, who knew him best, brought out this extremely interesting union of intellectual qualities, his science, his faith, his charity to the poor which was proverbial, and the charming geniality of his character, as well as his manifold human interests, in a passage that serves very well to sum up the meaning of the great Frenchman's life.