Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 40.

Hälsingland, 15/05/1732, ¶113:

Blue stone, of which I saw plenty both before and after this in Hälsingland, is used here to line chimneys because they say that it lasts better than millstone.

  1. Hälsingland (mentioned only)