Any person who violates any of the provisions of this act¹ shall be deemed guilty of a misdemeanor, and, upon conviction thereof, shall be punished by a fine of not more than fifty dollars for the first offense, and not more than one hundred dollars for each subsequent offense. No person shall be prosecuted under this act who can establish by satisfactory evidence that no part of the packing or branding of the apples concerned was done by him, or under his authority, and that he had no knowledge that they were not packed in accordance with said provisions. All penalties, costs, and fines collected under this act shall be paid to the Secretary of Agriculture, or his agent, and by him shall be paid into the State Treasury, for the use of the Commonwealth.