1. Nature, 150, 309 (1942).
2. Butterfield, H., The Origins of Modern Science, 8 (London, 1949).
3. For more about the Foundation see Science of Science (London, 1964). For further general bibliography of the field see Price, D. J. de S., Little Science, Big Science (New York, 1963).
4. Holton, Gerald, Amer. J. Phys., 29, 805 (1961).
5. Paper given at Amer. Assoc. Adv. Sci., Montreal (December, 1964).