PHILADELPHIA

Mum Puppettheatre will open its new theater in Philadelphia's Old City neighborhood with "Attack of the 50 Foot Fantoccini," a collection of short, funny pieces for family audiences. The show, which invites audience improv participation, features original puppet skits created by Robert Smythe, Scott Hitz and other company artists. At the Mum Puppettheatre, 115 Arch St. Tuesday through Friday at 8 p.m.; Saturday at 2 and 8 p.m.; next Sunday at 2 p.m.; Sept. 15 at 9:30 p.m.; Sept. 17 at 5:30 p.m.; Sept. 18 at 7:30 p.m.; Sept. 19 at 1 p.m. $10. Call 215-925-7686.

CAMBRIDGE, Mass.

"Emily Dickinson: A Life in Writing, 1830-1999," at Harvard University's Houghton Library, displays manuscripts and art-embellished letters, the poet's childhood collection of pressed flowers, and books she treasured throughout her life. Also on view are the "fascicles," manuscript booklets of selected poems with alternate word choices that Dickinson folded and stitched together. Through Oct. 29 at the library, Massachusetts Avenue and Quincy Street. Monday through Friday, 9 a.m. to 5 p.m.; Saturdays, 9 a.m. to 1 p.m. Free. 617-495-2441.