Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 122.
The Mountains [1], 10/07/1732, ¶642:
The water in the lake VIRIJAURE was whitish green, just like water standing in a bowl in which there has been milk before. This was because of the very great purity and lightness of the water, as well as its transparency. It was colder than snow water.