Encyclopædia Britannica 1771–1860
Topic · 2 of 8 editions · peak 439 chars

BACK-STAFF, or DAVIS'S QUADRANT

1st2nd3rd4th5th6th7th8th
EditionAs printedTypeCharsLocationvs. previous
5th ed. (1815) BACK-STAFFarticle178vol. 3, p. 310
8th ed. (1853–60) BACK-STAFF, or DAVIS'S QUADRANTsub_entry439vol. 4, p. 351