Further to my previous piece, Asbestos , I have finally found a reference to the presence of asbestos on Harris:
The Edinburgh New Philosophical Journal
Vol 4, 1828, p150, footnote to:
This account from 1828 matches precisely the location identified by the later-hand on Bald’s map of 1804.
I cannot yet say if the ‘Abislos Quarry’ (written by the original hand) indicates asbestos quarrying occurring as far back as 1804, but am pleased to have finally found some corroborating evidence to the existence of asbestos on Harris.
I think that the author of this ‘Account’ was William MacGillivray, who, a the age of 55 in 1851 was living at 159 King Street, Aberdeen. He was ‘Professor Of Civil And Natural History In Marischal College And University of Aberdeen, a post he had held for at least a decade.