An analysis of Walt Whitman’s “When I Heard the Learn’d Astronomer,” focusing on its theme, structure, contrasting settings, the scientific/mathematical diction, the mystical diction, and particularly its syntax. For instance, because of the length of the poems, students are often surprised to learn that it has only one grammatical sentence, granted a long one of eighty-three words. This handout, which has blanks that your students can fill in, may be used as a homework assignment or an in-class activity. An answer key is provided on a separate page at the end of the handout. Prepared by Professor William Tarvin, Ph.D., who has published many articles on literature in scholarly journals.