Many questions have been asked and are still being asked concerning the census which the Manchoukuo government conducted in 1940. It seems, therefore, that there is a need for a somewhat detailed statement of the background, aims, and methods of that census, and for a description of the results, in so far as they are available at present. No one familiar with the history of Manchuria will deny that it is one of the most vital and has been one of the most contested areas of the Far East. And though the vast majority of Americans, as well as the vast majority of Chinese, will deplore the auspices under which this census was conducted, it would be unrealistic to ignore the event, or to deny that the complete results, when they become available, will be of enormous value to those who must plan for the rehabilitation of Manchuria, and to those who hope to develop commercial relations with that area.