In this sixth volume of the Ethnic Heritage Series, the pattern of ethnicity in Nova Scotia (Canada) is examined by deriving indices of diversity for counties and larger towns. The historical development of ethnic patterns from 1767 to 1971 and recent changes in the ethnic pattern are discussed. Ethnic origin data is mapped for 1871 and 1971 and compared with 1971 patterns for mother tongue and birthplace. Locational quotient maps show the distribution of French (grouped in four main pockets), Germans (concentrated in Lunenburg), blacks (in Halifax County), and Native Indians (in Cape Breton Island). It is reported that of recent immigrant groups, British and American born are dispersed, while Europeans and Asians cluster in certain neighborhoods of metropolitan Halifax. Factor analysis is used to regionalize the province's ethnic character. (Author/JCD)