The duty of throwing the mails overboard, when serious danger was apprehended, appears sometimes to have been carried out with undue haste; for we find an account in the 'Annual Register' of March 4, 1759, that the Dutch Mail of the 23d February had been thus disposed of through an unlucky mistake. The ship conveying it was of Dutch nationality, and, being boarded by a privateer, those in charge had hastily concluded that the visitor must be an enemy. When too late, they discovered their mistake, for the stranger proved to be a friendly English cruiser; and they thereafter reached Harwich with a budget of regrets in place of the mails. The packet-boats sailing from the ports of Harwich and Dover, being habitually in the "silver streak," were subject to frequent interruptions from English privateers and men-of-war frequenting these waters; and to lessen the inconvenience thus arising, the packets at one time carried what was called a "postboy jack." An official record of 1792 thus describes the flag: "It is the Union-jack with the figure of a man riding post with a mail behind him, and blowing his horn." These flags were made of bunting, and cost £1, 2s. each. [Illustration: Postboy jack] Happily there has not for a long time been any need for using fighting ships to convey the mails of this country over the high seas; and this is a danger which it has not been needful to provide against in the packet service of the present generation. Before leaving these mail-packets of former days, it is perhaps worth recording, that while needy passengers were sometimes carried on board at half the usual fares, and those in destitute circumstances for nothing at all, the poor Jews were kept outside the pale of the generous concession; and the Post-office thus joined the world's mob in the general harsh treatment of that unhappy race. This appears by an official order of 1774, and the hardship was only removed under an authority dated August 24, 1792. The Postmaster-General's minute on the subject is as follows:--"The Postmaster-General thinks that the last words of the order which proscribes all Jews, merely because they are Jews, is not consistent with the usual liberality of the office; but that the agent should be directed to give to them the same privileges that are given to all the rest of the world without any exception to them on account of their religion." We will be pardoned one more quotation. It is a concession on the score of religion, made by the Postmaster-General in a minute, dated October 19, 1790. It runs thus:--"Let the Secretary write a civil letter to Mr Coke, that the Postmaster-General is very willing to relinquish, on the part of the King, the usual head money of 12 guineas for three persons at £4, 4s. each, whom Mr Coke represents to be sent to the West Indies for the purpose of instructing the negro slaves in the principles of the Christian religion."