Exercises in English, these pieces from film critic Dehn offer a scattering (but not a smattering) of interests -- poetry, films, performers, words, writers, Shakespeare and spoofs. His reply of replies to Nancy Mitford's U-world; his efforts at crystallizing rose petals; his talents for writing a new kind of poetry; his love affair with Esther Williams and Joan Crawford -- these have their giddy gaiety. His evaluations of Shakespeare on film; his tribute to James Agate; his feeling for the poetry of children; his own lines to Debussy music -- these are considered and stimulating. For those to whom the play of the mind and the color of ideas have a fascination.