Ordnance Survey Scotland Half-inch Series.
Great Britain.Ordnance Survey.
Southampton : Ordnance Survey,
[1908-1912].
Relief shown by contour lines.
Scotland, half-inch to the mile: hill shaded: published 1912, sheets 1-17, 19-20, 21-34; layer coloured: published 1913, sheets 6-34.
refer to: 37 (R. Hellyer: 1999).