As civilization progresses and new inventions are created, the demand for natural resources will increase. As new processing methods are devised, Virginia will undoubtedly increase the development of such resources. _Human Resources_ The natural resources of a state assume a comparatively minor role unless there are human resources to develop and to utilize them. The present population of Virginia is approximately 3,900,000 people. This figure represents a gain of approximately 17% in the last decade. Virginia now ranks sixteenth in population among the fifty states of the United States. Of this total population, approximately 40% in 1960 lived in incorporated localities having a population of 25,000 or more, an increase of approximately 4% over 1950; approximately 78% are white and 22% are non-white. Of the non-white population, approximately 21% are Negroes and the remainder consists primarily of Indians, Chinese and Japanese. Most of the survivors of the Mattaponi and Pamunkey Indians now live on reservations in King William County and the Chickahominy Indians in New Kent and Charles City Counties. Of the white population in Virginia, only 1.03% is foreign-born. Density of population refers to the average number of people per square mile in a state. Density is found by dividing the total population of a state by the total land area of the state. The density of population in 1960 was 96. The counties of Fairfax (southwest of, and adjacent to, Arlington County) and of Henrico (adjacent to Richmond) more than doubled their population from 1950 to 1960. From 1880 to 1930, while the population was increasing rapidly in most states of the United States, it was increasing very slowly in Virginia--only a 5% increase. During this period, there was a large migration from Virginia to other regions of the United States, primarily to seek better employment opportunities. Of this emigration, 65% consisted of non-whites. This emigration practically ceased during the 1930's. During the Great Depression, agricultural workers who had made up the large proportion of the previous emigration realized the futility of migrating to urban areas beyond the state, already overcrowded with unemployed people. Although manufacturing activities in the nation declined during this period, in Virginia such activities increased, causing the number of employees in manufacturing to increase in Virginia. At the same time, governmental activities within Virginia and in areas adjacent to Virginia greatly expanded, thus affording more opportunities for additional employment in Virginia than in many other states of the Union during this time.