PN - Literature, Literary History and Collections
Of note:
PN1-9 - Periodicals
...
PN80-99 - Criticism
PN101-245 - Authorship
PN441-1009.5 - Literary history
PN451-497 - Biography
PN597-605 - Special relations, movements, and currents of literature
...
PN611-649 - Ancient
PN661-694 - Medieval (to 1500)
PN683-687 - Legends
PN688-691 - Poetry
PN692-693 - Prose; Prose fiction
...
PN715-749 - Renaissance (1500-1700)
PR - English Literature
Of note:
PR1-56 - Literary history and criticism
PR57-78 - Criticism
PR111-116 - Women authors
PR125-138.5 - Relations to other literatures and countries
PR171-488 - Critical and historical works
PR171-236 - Anglo-Saxon (Beginnings through 1066)
PR251-369 - Medieval; Middle English (1066-1500)
PR401-488 - Modern (Elizabethan era - 21st century)
PR500-614 - Critical and historical works: Poetry
PR621-744 - Critical and historical works: Drama
PR750-890 - Critical and historical works: Prose (Prose Fiction; the Novel)
PR901-907.2 - Oratory
PR908 - Diaries
PR911-918 - Letters
PR921-928 - Essays
PR931-938 - Wit and humor
PR951-981 - Folk literature
PR1098-1369 - Collections of English literature
PR1490-1799 - Anglo-Saxon literature
PR1803-2165 - Anglo-Norman period. Early English. Middle English
PR2199-3195 - English Renaissance (1500-1640)
PR3291-3785 - English literature: 17th and 18th centuries (1640-1770)
PR3991-5990 - English literature: 19th century, 1770/1800-1890/1900
...
PR8309-9680 - English literature: Provincial, local, etc.
