On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 14, Part 1, Number 1, Books and Pamphlets, Including Serials and Contributions to Periodicals, January-June 1960. Copyright registration number A436126. Copyright given to Close-Up, Inc. Also listed as a part of the Archie Giant Series in the catalog.
A later digest reprint deleted Mr. Weatherbee's line "Professor Flutesnoot has been sniffing too many chemicals."
In this story, Betty is as bad a cook as Veronica. The idea that Betty was a great cook, while it had occasionally appeared, did not take permanent hold until several years later.