250.—If a superintendent, deputy, clerk, or servant, in a mercantile marine office, demands or receives save as provided by any Act, or authorised by the Board of Trade, any remuneration whatever, either directly or indirectly, for hiring or supplying any seaman for a ship or transacting any business which it is his duty to transact, he shall for every such offence be liable to a fine not exceeding twenty pounds, and also to dismissal from his office by the Board of Trade.