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506 the population and 0.1 to the scientific men. These differences are not, however, necessarily due to any racial superiority of the British and Germans. Men have been called from these countries to scientific positions here or have come to seek them, and in general a larger proportion of their immigrants have been from the educated classes. In my own science men so distinguished as Professor Münsterberg from Germany and Professor Titchener from England have accepted chairs of psychology in our universities. It is most unfortunate for us that this movement appears to have ceased. Between 1903 and 1910 only one scientific man of high distinction was called to this country, whereas nine leading scientific men returned to their native countries.

We could and should see to it that the foreigners coming to the United States contribute their share of men of performance. From the point of view of national selfishness nothing could be more profitable than to add to the community as many foreign men of distinction as would come for five or ten thousand dollars a year, and as many young men of promise as would come for one or two thousand dollars a year. Such men are already selected and their education is paid for. We have paid for the education of some 150,000 physicians to obtain at most 1,000 who are competent to advance medical science. The services of this thousand are probably worth as much as those of all the others combined, so if we divide equally the cost of bringing up and educating these physicians, the cost of a man competent to advance science is perhaps $500,000 and his value is far greater. Such men we can obtain from abroad free of cost beyond the payment for their living, which must be paid equally to those who are educated and selected at our own expense. Not only the men themselves, but their descendants also are assets to the country of incalculable value. From the point of view of the world at large, it is probably an advantage to bring men of distinction and of promise to this country, as this tends to promote friendly international relations and good-will, and because, the wealth being greater here and the competition less, we should be able to give better opportunity to the men. The war has placed on us great responsibility; we should provide for those debarred from advancing science, scholarship and art at home. If Great Britain can afford to cast ten billion dollars into the abyss, we are able to invest an equal sum to advance the arts of civilization.

While it is comparatively easy to determine the nationality of scientific men and of their parents, it is almost impossible to determine their race. Indeed, a consideration of the subject leads to a realization of the complexity of the racial descent of the peoples forming the nations of western Europe and America. There are 13.5 families stated to be Jews. Of 71.5 German families, 8 are Jews; of 6 Russian families, 5 are Jews; among 660.5 native American families, there is only one Jewish parent. There may be some unrecorded cases; the