571. The Little Naturalist, circa 1959 [b008] [f004] [007a]

572. Mitchell, Lucy Sprague. North America: The Land They Live in for the Children Who Live There. New York: Macmillan, circa 1931 [b002] [f001] [004a]

573. Hear Ye of Boston, circa 1964 [b005] [f002] [032]

574. Meet Miki Takino, circa 1963 [b001] [f051] [009]

575. The Little Naturalist, circa 1959 [b008] [f006] [009a]

576. Freddy the Pilot [b021] [f011] [003a]

577. Freddy and the Ignormus [b021] [f007] [003a]

578. The House that Changed, circa 1963 [b001] [f031] [053]

579. Mitchell, Lucy Sprague. North America: The Land They Live in for the Children Who Live There. New York: Macmillan, circa 1931 [b006] [f001] [002a]

580. Hear Ye of Boston, circa 1964 [b005] [f003] [010]