This article considers the decline of Scottish Conservatism, 1951–97. The statistical data indicate that 91 percent of the variance in Tory support is accounted for by an underlying negative trend against time, that similar patterns appear when the data is disaggregated by region, and that short-term fluctuations have been more in conformity with English results than is conventionally understood. The process of generational change is seen as a waning of the cultural conditions which produced the centre-right coalition that dominated Scottish politics, 1931–64, and its fragmentation into Conservatism, Liberalism, and Scottish Nationalism. The changed circumstances are not seen as peculiarly Scottish, but the consequences for Scottish Conservatism of an evolution affecting the centre-right across the United Kingdom.