As I recall, Blackwood Article is only the first half of a complete story. A believe the second half is called The Incident. The two stories were published separately, but they are the same text.--24.9.217.251 06:43, 10 September 2005 (UTC)
---The companion tale was published as 'The Scythe of Time', and was later renamed 'A Predicament'. Both works were first published in the Baltimore American Museum (November 1838).