The cross word puzzle book (1924)
“ But perhaps the most fascinating of all word puzzles are [20] the types in which words are to be guessed from definitions. There is the well-known acrostic, where with definitions as clues you arrive at a set of words of which the initial letters, or finals or second letters or third, as may have been determined, will spell another or other words. During the struggle for Italian freedom an acrostic was seen in the shibboleth, Vittorio Emmanuele Re D’Italia, giving the name of the composer, Verdi. ”
