Correspondence, holograph and/or manuscript notes, typescripts, sketches and/or illustrations, galleys, proofs, specification sheets, material for short stories, original and printed greeting cards, and miscellaneous illustrations. The Collection holds holograph and/or manuscript notes for Bolts, a robot dog (1966); Flight to the lonesome place (1971); The golden enemy (1969); The incredible tide (1970); Mystery of the sassafras chair (1967); and The preposterous adventures of swimmer (1973). There are typescripts for Bolts, a robot dog; Escape to Witch Mountain (1968); Flight to the lonesome place; The forgotten door (1965); The golden enemy; The incredible tide; Jagger, the dog from elsewhere (1976); The magic meadow (1975); Mystery of the sassafras chair; The preposterous adventures of swimmer; Return from Witch Mountain (1978); The strange white doves (1972); and The sword of Aradel (1977). The Collection holds sketches and/or illustrations for Bolts, a robot dog; Liberty or death (1936); The magic meadow; Rivets and Sprockets (1964); Sprockets (1963); and The strange white doves. There are galleys for Escape to Witch Mountain; Flight to the lonesome place; The golden enemy; The incredible tide; Mystery of the sassafras chair; The preposterous adventures of swimmer; and The strange white doves. The collection includes proofs for Jagger, the dog from elsewhere; The magic meadow; Return from Witch Mountain; and The sword of Aradel. There are also specification sheets for Bolts, a robot dog. Finally, the Collection holds illustrations for several short stories from Story Parade.