Section 46 of Pennsylvania Session Law from 1860 covers cruelty to animals.  The section describes what is cruelty to animal and the punishment for it.

SECTION 46. If any person shall wantonly and cruelly beat, torture, kill or maim any horse or other domestic animal, whether belonging to himself or another, every such person so offending shall be guilty of a misdemeanor, and on conviction, be sentenced to pay a fine not exceeding two hundred dollars, or undergo an imprisonment not exceeding one year, or both, or either, at the discretion of the court.