Philip D. Morgan (ed.), Diversity and Unity in Early North America (London: Routledge, 1993, £37.50, £12.99 paper). Pp. 284. ISBN 0 415 08798 8, 0 415 08799 6. - Jack P. Greene, The Intellectual Construction of America: Exceptionalism and Identity From 1492 to 1800 (Chapel Hill, NC: University of North Carolina Press, 1993, £32.95 cloth). Pp. 216. ISBN 0 8078 2097 0