Section 25. And be it further enacted by the authority aforesaid, That every person practising physic in the city, districts and townships aforesaid, who shall have a patient laboring under a pestilential or contagious disease, (small pox and measels excepted) shall forthwith make a report in writing to the health officer, and for neglecting so to do he shall be considered guilty of a misdemeanor, and subject to a fine not exceeding fifty dollars.