Professor Potter appears in 5 issues in this volume.
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Issue #148
October 1961
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Issue #160
When Superman Lost His Powers!
April 1963
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Issue #171
Superman’s Sacrifice! / The Curse Of Magic! / The Nightmare Ordeal of Superman!
August 1964
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Issue #176
The Revenge of the Super-Pets! / Tales of Green Kryptonite No. 2 / Superman's Day of Truth!
April 1965
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Issue #413
Superman -- Your World is Mine!
November 1985
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