11 SEPTEMBER 1926, Page 18

How a Slipper limpet devours oyster beds and changes its

sex from male to female, the determination of sex, sublimation, repression, and questions such as " are women inherently inferior to men ? " are all dealt with in Professor John R. Baker's Sex in Man and Animals (Routledge, 7s. 6d.), which , is both popular and scientific-no common combination. We agree with Professor Julian Huxley who says in the preface that sex touches "the deepest• and most intimate parts of our nature, so that right-minded people will always continue to demand for it that privacy and respect which we demand for everything personal and sacred. ' But it cannot be doubted that popular knowledge and a frank attitude to the subject will diminish the cruelty of the inevitable difficulties."