ENCICLOPEDIA ITALIANA DI SCIENZE, LETTERE ED ARTI

(Italian: Italian Encyclopaedia of Science, Letters, and Arts), major encyclopaedia of Italy, containing 35 volumes of text and a one-volume index. Work on the encyclopaedia began in 1925 and the volumes were published serially from 1929 to 1936; appendixes have been published covering the years from 1937 to 1960. The Enciclopedia italiana contains many excellent lengthy articles, usually signed with the initials of their authors, and thousands of illustrations.