Superman expert Karl Mattson pointed out an error in Superman Golden Age Dailies 1944-47: the November 22, 1944 daily was a duplicate of the November 23rd strip. As strip researchers know, some newspapers printed strips on days other than the “official” in-panel date; in these cases, the newspaper would often unilaterally re-date the strip. Our source for November 22nd (the San Francisco Academy of Comic Art Collection) was obviously from one of those newspapers. Our apologies for not catching this before publication. We’ll fix it if we go into a second printing, and in the meantime, the correct strip is above.