12 Scribner Juveniles, including the 5-volume Juvenile Future History;
2 Putnam juveniles, including the controversial Starship Troopers;
2 Moon stories incorporated into the Future History.
(To Scribners' eternal credit, they rejected the thirteenth Juvenile which was then published by Putnam and later filmed to the satisfaction neither of those who liked the book nor of those who disliked it.)
Anderson's juveniles comprise:
two short stories in the Technic History;
one longer story in the Time Patrol series;
one Heinleinian Moon rescue story with a juvenile protagonist.
However, I find this ratio satisfactory. Any Andersonian equivalent of the Scribner Juveniles would necessarily have detracted from the time that Anderson was able to give to the many series that he did write.
