ABANDONED LEAD MINE TURNED INTO MUSHROOM FARM (May, 1933)
This seems like a really, really bad idea, though in a pinch you can use your mushroom as a writing implement.
ABANDONED LEAD MINE TURNED INTO MUSHROOM FARM
On a piece of ground 200 feet beneath the earth’s surface, Dick Wills of Miami, Okla., is growing regular crops of mushrooms. His unusual farm is the passageway of an abandoned lead and zinc mine, where he found a suitable temperature practically constant the year around. The farm hands wear regulation miners’ costumes, even to the small carbide lamps on their heads, for the mushrooms thrive best in darkness. Fifty pounds are harvested daily. A royalty is paid to the owner of the land, an Indian, who is delighted at the resumption of his income since the mine itself petered out.