Show Fin lands barometric stone it Is said that there Is to be found in V inland finland a kind hind ot of stone that actually foretells changes in the weather in dry fine weather the stone shows a dark gray color mottled with white spots but before approaching showers or thick mists it blackens all over most conspicuously of course at the spaces which were previously white and gradually returns to its former state as the weather improves its prophetic warnings are regarded b by y many finlan Fin landers ders as having a supernatural per natural origin but a recent analysis of the stone explains the cause and shows that there Is nothing whatsoever mysterious in its action it is composed of a ground mass of clay and fossilized organic matter with a little rock salt and nitre scattered throughout in grains and small patches these salts absorb the aerial 11 at moisture as it increases in amount and dissolves in it forming their white color as the drier atmosphere evaporates the moisture from black surface films while they regain them |