IN December 1935, a Commission of Experts (Technical Commission) appointed by the Health Committee of the League of Nations issued its London Report on the “Physiological Bases of Nutrition” (see NATURE, Feb. 1, p. 176). The publication of this report was followed by its communication for study to representative learned societies, social studies institutions and health administrations in various countries. Observations received from such sources indicated general approval of the purpose and content of the report. Several suggestions were made, however, regarding details which might deserve further consideration. These were examined at a further meeting of the Technical Commission at Geneva in June last, with the result that a revised edition of its report has now been published.