According to the thirteenth census of the United States, the value of the electrical machinery, apparatus and supplies produced in this country alone, in 1909 was $221,000,000. In 1907, the value of the electric light and power stations in the United States was $1,097,000,000, of the telephones $820,000,000, and the combined income from these two sources was $360,000,000. Nor does this represent a tithe of the values, as yet barely realized, which these researches placed at our disposal. Thus in its waterfalls, the United States is estimated to possess 150,000,000 available horse-power, which can only be realized through the employment of Faraday's electro-motor. This corresponds, at the conservative figure of $20 per horse-power per annum to a yearly income of $3,000,000,000, corresponding at 4 per cent. interest to a capital value of $75,000,000,0000.[3] [3] M. T. Bogert, "The Function of Chemistry in the Conservation of our National Resources," Journal of the American Chemical Society, February, 1909. Such was the Christmas gift which Michael Faraday presented to the world in 1821. Faraday died a poor man in 1867, neither for lack of opportunity nor for lack of ability to grasp his opportunities, but because as his pupil Tyndall tells us, he found it necessary to choose between the pursuit of wealth and the pursuit of science, and he deliberately chose the latter. This is not a bad thing. It is perhaps as it should be, and as it has been in the vast majority of cases. But another fact which can not be viewed with like equanimity is that of all the inexhaustible wealth which Faraday poured into the lap of the world, not one millionth, not a discernible fraction, has ever been returned to science for the furtherance of its aims and its achievements, for the continuance of research.