Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 608
achemical element is a sub-stance that never can be changed into any other substance. Thus, goldalways remains gold and lead always remainslead. You cant change gold into lead or leadinto gold. That is what we always have beentaught. But a few grains of innocent radiumthreaten to overturn {he… … and scientists are still looking through micro-scopes, and heating test-tubes, and experiment-ing, and shaking their wis old heads. If radiumturns to helium, if one element can turn into an-other,—who can tell ?—perhaps the old alche-mists were nt so far off, after all, when they triedto turn lead…
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