Abstract
PROF. GRAHAME CLARK has given tentative estimates of the population of England and Wales, or Britain, in early times. These figures, together with the somewhat firmer estimates for the historical period1 form the basis of Figs. 1 and 3. L. S. Palmer gives tentative estimates of the number of general kinds of materials used for making things2. These form the basis of Figs. 2 and 4.
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References
Clrak, J. G. D., “Archæology and Society” (London, 1957). Russell, J. C., “British Medieval Population” (Albuquerque, 1948).
Palmer, L. S., “Man's Journey through Time” (London, 1957).
Piggott, S., “The Neolithic Cultures of the British Isles” (Cambridge, 1954).
Childe, V. G., “What Happened in History” (Harmondsworth, 1942).
Plumb, J. H., “England in the Eighteenth Century” (Harmondsworth, 1950). Thomson, G. P., “The Foreseeable Future” (Cambridge, 1955).
Pettersson, M. L. R., “A Survey of Science” (London, 1958).
Price, D. J., Discovery, 17, 240 (1956).
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PETTERSSON, M. Main Stages of Social Evolution in Man. Nature 184, 481–482 (1959). https://doi.org/10.1038/184481b0
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DOI: https://doi.org/10.1038/184481b0
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