(_b_) On entering or leaving any foreign port. (_c_) If the vessel is of 50 tons gross tonnage or more, on entering or leaving any British port. Merchant ships commanded by officers on the retired list of the Royal Navy or by officers of the Royal Naval Reserve may, on certain conditions laid down in the _King's Regulations_, be allowed to wear a blue ensign instead of a red one. No British merchantman may, under penalty of £500 and confiscation of the colours, wear any other "distinctive national colours," nor any other flags or pendants in any way resembling those of H.M. ships, but there is nothing in the Merchant Shipping Act to prevent any such ship from wearing any fancy flags that it likes--even if some covert disloyalty is intended thereby--provided that such flags are not "distinctively" national and do not imitate the flags of the navy, and that it displays the red ensign upon the proper occasions. The law on the subject of the flags to be flown by British merchantmen was, as will have been seen, sufficiently explicit, and the flags allowed by no means inferior in dignity or traditional sentiment to those withheld; nevertheless, the merchant skipper, until a comparatively recent period which may be dated roughly as the beginning of the reign of Queen Victoria, seems to have taken an especial delight in attempting to evade the law. Attempts to fly the Union jack have already been sufficiently illustrated. Another idiosyncracy was the flying of the blue instead of the red ensign. St Lo dealt with this at Jamaica in 1728 by an ingenious device, that of using the Crown's right of impressment to deprive such ships of one of the most important members of the crew: "rather than be troubling their Lordships with complaints of taking them away, I have found out another expedient, which is to get a Carpenter or Caulker from them, so that I hope in a little time to bring them to better reason." In 1819 the master of a ship in home waters who had persisted in flying a blue ensign and pendant although repeatedly fired at, was prosecuted by the Admiralty, but upon his appeal the prosecution was dropped with the hope that "it will be understood that any future violation of the law will be punished strictly." Two other ships were, in the following year, prosecuted for flying pendants, and in 1821 the attention of the Commanders-in-Chief was called to the existing regulations "relative to Colours to be worn by private ships which it has been apprehended have not been generally attended to."