Adventure Comics #219

Superboy rescues Professor Lang from a big gorilla and captures it for an exhibition. But a canny crook notices the gorilla's eyes flash during lightning flashes, so deduces it has x-ray vision. They steal the gorilla to burn through walls and safes. Superboy can't stop it because he's weakened by the glare. Lang reveals it drank kryptonite-infused water in Africa. Superboy finally builds a giant battery to \"defuse\" the gorilla, and the effect wears off.