Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 175.
Österbotten, 12/08/1732, ¶970:
The people suffered a severe crop failure last year so they chop the chaff and the top of the straw as finely as they can, grind it and bake bread from it. Some bake the bark of pine trees.