I finally got my hands on a golden age issue that I had been chasing down for a specific reason.  The issue in question is Superman's Friend Jimmy Olsen #65.  I wasn't actually expecting the serial format within the issue, but as it was there were three stories in there, the third of which only I was interested in (but as I am reviewing it as well, I read the other two stories first.)  Still ongoing is a project to review all of Mystery in Space, the series from the 1960s and 1970s which told science fiction stories sometimes of a dubious scientific nature.  I tend to give that series a hard time due to its logical gaps, but then occasionally I come across an issue such as this with a much bigger gap in logic that it makes me think not to be so critical (not that being critical of stuff in the golden age is all that worthwhile anyway.)  Here is the panel though: