ongside a ship between sunset, and sunrise, without the pet-mission of the officer in charge to be fined, not less than ??5 nor more than ??10, unless they can prove they were there for some lawful purpose : seamen or other persons em- ployed in or about a ship to be liable to two months' imprisonment for drunkenness, insubor- dination, disorderly conduct, or refusing to work : constables may go o