THE HARPER'S FERRY CONSPIRACY AND ITS CONCOCTORS.
...Forbes' plan was to organize a series of stampedes of slaves, fifty at a time, and run them off to Canada. Any disaster which would happen a single stampede would compromise those only who are engaged in it. Brown proposed to invite the slaves to rise. He argued that were he pressed by the United States troops, which after a few days might concentrate, he could easily maintain himself in the Alleghanies, and that his New England partisans would, in the meantime, call a Northern Convention to restore tranquility and overthrow the pro-slavery administration....
[Editor's Note: The majority of this article has been omitted from our transcription except for the portions directly mentioning the term "slave stampedes" or some variant.]
"The Harper's Ferry Conspiracy and Its Concoctors," Philadelphia (PA) Public Ledger and Daily Transcript, October 28, 1859, p. 2