241.—(1) If an official log-book is not kept in the manner required by this Act, or if an entry directed by this Act to be made therein is not made at the time and in the manner directed by this Act, the master shall for each offence be liable to the specific fine in this Act mentioned in respect thereof, or where there is no such specific fine, to a fine not exceeding five pounds.

(2) If any person makes, or procures to be made, or assists in making, any entry in an official log-book in respect of any occurrence happening previously to the arrival of the ship at her final port of discharge more than twenty-four hours after that arrival, he shall for each offence be liable to a fine not exceeding thirty pounds.

(3) If any person wilfully destroys or mutilates or renders illegible any entry in an official log-book, or wilfully makes or procures to be made or assists in making a false or fraudulent entry in or omission from an official log-book, he shall in respect of each offence be guilty of a misdemeanor.