The conspiracy in Arkansas.
--The Little Rock Journal, of the 3d instant, says:‘ Col. Jerome B. Lewis, who has for some time had in charge those engaged in the conspiracy in the northern counties of this State, arrived in town day before yesterday, and reports that, in addition to the twenty-seven prisoners confined in the prison here, he holds one hundred and twenty under guard--seventy-three in Searcey county and forty-seven in Izzard. He left officers making arrests, and supposes there are between six and eight hundred belonging to the organization engaged in the conspiracy.
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