Playground mystery boxes
Subtitle: the study of child character in neighborhood playgrounds. Talks from experience on how to supervise real play scientifically. A plea for street children, to satisfy their play hunger safely and thus prevent injury, disease, death, crime, insanity.
By: [By] Mabel E. Macomber.
Publisher: R.G. Badger
Published: 1927
Place of publication: Boston
Language: eng
Number of pages: 107
Subjects: Playgrounds.
Notes: "A primer of playground principles."--Pref.
"The playground creed of the City playground league of New York": p. 21-23.