Abstract
THE MOST conspicuous Late-glacial raised shoreline in the vicinity of the western part of the Firth of Forth is the Main Perth Shoreline (J. B. Sissons and D. E. Smith, 1965). It therefore seems reasonable to infer that this shoreline will be prominently developed in some other parts of south-east Scotland. The purpose of this paper is to show how morphological evidence and trend-surface analysis support this inference and also to consider the pattern of isostatic warping in south-east Scotland as revealed by the latter. All altitudes used in the trend-surface analysis were expressed to one-tenth of a foot, the results being subsequently metricized. They were obtained by accurate levelling based on Ordnance Survey bench marks and refer approximately to the former shoreline. Locations of the levelled points were expressed to the nearest Io m in terms of the National Grid, modified to give consecutive numbers. Columbia University's IBM 7094 computer was used to compute the surfaces. Three programs were employed: E. H. T. Whitten's (1963) Fortran II program, G. P. H. Styan and P. C. Trenholme's (1967) Fortran IV program, and a program in Fortran IV written by P. Kahn to produce maps of the surfaces computed.
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