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Scientific American, Vol. 69, No. 13 (1893) (1893)
leaf 3
aks the tube. Before this can possibly happen, is green. You can easily learn on two melons, one ripe, and its process of hardening copper, for which it was however, and necessarily end the experiment, a good awarded the John Scott medal by the city of Phila- deal of hydrogen will have passed over… … © 1893 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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