As this article doesn't contain an abstract, the image below is necessary to enable the article to be indexed by certain search engines. The resolution of the full-text PDF is much higher than that shown here.

New Books

The Nature of the Physical World. By A. S. Eddington M.A., LL.D., D.Sc., F.R.S., Gifford Lectures, 1927. (Cambridge University Press. 1928. Pp. xix + 361. Price 12s. 6d. net.)

Leonard Russell