Plaintiffs in error filed their bill of complaint in the Pulaski county chancery court, a state court of general chancery jurisdiction, praying an injunction against the city of Little Rock, its mayor and other officers, to restrain them from enforcing an ordinance passed by the city council to regulate livery stables. The ordinance recites that 'the conducting of a livery stable business within certain parts of the city of Little Rock, Arkansas, is detrimental to the health, interest, and pr...