Potential development of population in Africa from the physical and physiological point of view and how it can be achieved

about 100,000 people of indigenous African stock live south of the Sahara. The potentially invaluable reservoir of manpower in Africa is distinguished by a high physiological labour capacity and by low standards of work efficiency caused by continuous losses of adaptation energy. The main causes of these losses are the high rates of birth and of infant mortality; endemic and epidemic illnesses; deficiencies such as of clothing and housing; malnutrition; and superstition. It is suggested that an African institute for population research should be established with a view to preparing data on which a progressive policy could be based in order to improve working efficiency. The first task of such an institute should be the organisation of a comprehensive and detailed population census.