Another very great magic protector in every country among gypsies as well as Gentiles, is the thunderbolt, known in Germany as the Donneraxt, Donnerstein, Donnerkeil, Albschoss, Strahlstein, and Teufelsfinger. It was called by the Greeks Astropelákia, by the Latins Gemma cerauniæ, by the Spaniards Piedras de rayo, by the dwellers in the French High Alps Peyras del tron (pierres de tonerre), by the Birmans Mogio (the child of lightning), by the Chinese Rai-fu-seki (the battle-axe of Tengu, the guardian of Heaven), by the Hindoos Swayamphu, or "the self-originated." Dr. Krauss, from whom I have taken these remarks, adds that in America and Australia it is also regarded as a charm protective and luck-bringing. But here there is a confusion of objects. The thunderbolt described by Dr. Krauss is, I believe, a petrified shell, a kind of mucro or belemnite. The thunderbolt of the Red Indians really resembles it, but is entirely different in its nature. The latter results from lightning entering the sand fusing it. It sometimes makes in this way a very long tube or rod, with a point. People, finding these, naturally believed that they were thunderbolts. I knew an old Penobscot Indian who, seeing the lightning strike the earth, searched and found such a thunderbolt, which he greatly prized. In process of time people who found mucrones in rocks believed them to be the same as the glass-like points of fused sand which they so much resembled. The so-called thunderbolt is confused with the prehistoric stone axe, both bearing the same name in many lands. As this axe is often also a hammer it is evident that it may have been sacred to Thor. "The South Slavonian"--or gypsy--"does not distinguish," says Dr. Krauss, "between the thunderbolt and prehistoric axe. He calls both strelica." The possession of one brings luck and prosperity in all business, but it must be constantly carried on the person. Among the "thirties" there lived in Gaj in Slavonia a poor Jewish peddler named David. Once he found a strelica. He always carried it about with him. The peasants envied him greatly its possession. They came to him in the market-place and cried, "Al si sretan, Davide!" ("Ha, how lucky thou art, David!") The Slavonian Jews called him, for a joke, "Strelica."