Medals there are in quantity to signalize U. S. scientific achievement, but very few cash prizes of account. Where cash has been offered it has usually been by the popular scientific periodicals. Orson Desaix Munn's Scientific American has in the past posted much prize money. Currently it has no important offer. Arthur H. Lynch's Science & Invention safely offers $21,000 for sure evidence of spiritualism and $5,000 for a perpetual motion machine. Last week appeared "the largest prize of its kind in the country"$10,000 cash and a gold medal, to be given yearly...
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