An Enquiry concerning the Principles of Natural Knowledge

PHYSICISTS and philosophers can unite unreservedly in an expression of gratitude to the author of this most acute and original work. At the present time, when it is generally recognised that the ultimate concepts of physics require reinterpretation, it is a piece of great good fortune that the task should be undertaken by a thinker who is not only one of the foremost of living mathematicians, but also a metaphysician who sees clearly the wider issues that are involved.An Enquiry concerning the Principles of Natural Knowledge.By Prof. A. N. Whitehead. Pp. xii + 200. (Cambridge: At the University Press, 1919.) Price 12s. 6d. net.