###ey undertaken at practically the same time of year. ating in 1941 the families surveyedin 1940 was that it was not possible to obtain an Comparative study in of the diets of working class families London in Spring 1940 and 1941. A survey of the diets of 100 working class families was made in London in ng 1940 (1) By arrangement with the Ministry of Food a similar survey was made of families in Spring 1941. It was hoped that the families studied in 1940 could be udied in 1941, but in the meantime many of the children had been evacuated and a er of families had been "bombed out".