Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 30.
Uppland, 12/05/1732, ¶37:
Before I came to the next inn, a croft lay on the right-hand side, immediately across the high road from a small pool in which they do the washing. I saw here a smooth, sloping washing-stone which was made of white granite but in which there were 3 large squares of black granite as if inlaid by a skilful stonemason. These squares, however, run right through the stone, as can be seen at one end where the stone is broken off.