A final word on Marvel Science Stories, May 1951:
“The Test Tube: Renascence” is a one-page summary of the magazine’s editorial goals and guidance. “Here is our answer—in action—to the hundreds of requests we have received from our readers, to go small size, to get the best authors in the field, to get higher quality illustrations and covers, to become, in fact, the leading science-fiction magazine.”
Their story criteria: mature, lively, and above all, a good story.
Although Marvel Science Stories never achieved its lofty goal to become the leader in its field; if this issue is indicative of its third volume series, it is a title worth seeking out.