Outside the Post-office department it is probably not apprehended to what extent care is actually bestowed upon letters and packets—when, in course of transit through the post, their covers are damaged or addresses mutilated—in order to secure their further safe transmission; many envelopes and wrappers being of such flimsy material that, coming into contact with hard bundles of letters in the mail-bags, they run great risk of being thus injured. But the occasions on which exceptional pains are taken, and on a large scale, to carry out this work, are when mails from abroad have been saved in the case of shipwreck, and the contents are soaked with water. Then it is that patient work has to be done to get the letters, newspapers, &c., into a state for delivery, to preserve the addresses, and to get the articles dried. In certain instances the roof of the chief office in St Martin's-le-Grand has been used as a drying-green for shipwrecked newspapers, there being no sufficient space indoors to admit of their being spread out. The amount of patching, separating, and deciphering in such circumstances cannot well be conceived.

But perhaps the most curious difficulty arising out of a shipwrecked mail was that which took place in connection with the loss of the Union Steamship Company's packet 'European' off Ushant, in December 1877. After this ship went down the mails were recovered, but not without serious damage, through saturation with sea-water. One of the registered letter-bags from Cape Town, on being opened in the chief office in London, was found to contain several large packets of diamonds, the addresses on which had been destroyed by the action of the water, and some 7 lbs. weight of loose diamonds, which had evidently formed the contents of a lot of covers lying as pulp at the bottom of the bag, and from which no accurate addresses could be obtained. Every possible endeavour was made to trace the persons to whom the unbroken packets were consigned, and with such success, that after some little delay they reached the hands of the rightful owners. To discover who were the persons having claims upon the loose diamonds, which could not be individually identified, was a more serious matter, involving much trouble and correspondence. At length this was ascertained; and as the only means of satisfying, or attempting to satisfy, the several claims, the diamonds were valued by an experienced broker, and sold for the general behoof, realising £19,000. This means of meeting the several claimants proved so satisfactory, that not a single complaint was forthcoming.