Joseph Cornell (1903-1972) was one of the 20th century's leading exponents of collage and assemblage. A connoisseur of an astonishing array of subjects, Cornell's captivation with bygone imagery encompassed astronomical charts and geographical maps, Italian and Spanish Old Master paintings, historical ballet, early film, literature, poetry and ornithology. Most iconic among his works are his box constructions--microcosmic curiosity cabinets--filled...