I DO not know how far the columns of NATURE are suitable for the discussion of “power” (in the human community). But when I find no less than three of the nine chief reviews in the issue for December 8 dealing with this question, and Dr. Snow and myself being scolded for “false methodology” and the want of a “robust” political faith, it is perhaps permissible to point out that the class-war dogma which underlies this sort of criticism has no scientific standing.