XXII.–A Brief Description of the Map of Shetland, issued with Vol. II of the Mineralogical Magazine

Heddle
1879 Mineralogical Magazine and Journal of the Mineralogical Society  
The accompanying map is the outcome of a survey of Shetland, conducted during part of several summers. Almost the whole of the junctions laid down were visited by myself ; for the few that were not, and also for certain of the lines continued inland—which from an almost unbroken covering of peat and turf, are more or less conjectural—I am indebted to Dr. Hibbert's narrative. To Professor Geikie's map of Scotland I am indebted for the southern limit of the isolated mass of sandstone of the
more » ... dstone of the Lerwick district.
doi:10.1180/minmag.1879.002.12.01 fatcat:o4cqbaq7ufe6viv2polcf25zza