The fountain-head of the Post-office establishment of this country, whose personal embodiment is the Postmaster-General, possesses very ample means for the collection of information of various kinds through its willing and trusty agents, to be found in every corner of the empire; and this idea seems to be entertained as well by individuals abroad as by our neighbours at home, who, when they fail to ascertain what they want by other means, frequently fall back upon the Postmaster-General for assistance and guidance--the Post-office being pre-eminently a people's institution, whose head even no poor man need fear to approach--at any rate by letter. It is a common expression to say that a thing cannot be done for love or money; but while the Postmaster-General is addressed by inquirers on every variety of subject, it will be found that love and money are at the bottom of many of the communications addressed to him not strictly upon the business of his Department. In the following paragraphs will be found specimens of such letters--some entreating him to render assistance in tracing missing relatives, some asking help in the recovery of fortunes supposed to have been left to the writers, others begging him to obtain situations for them, and the like; but the letters generally explain themselves. The Dead-letter Office must occasionally be supposed to be a repository for the human dead, as inquiries for deceased persons are sometimes addressed to the "Dead Office." Thus:-- "We heard in the paper about 12 or 14 months back Mary Ann ---- the servant girl at London was dead. Please send it to the Printer's office by return of post whether their was a small fortune left for ----." "i Beg of you to let me if you do no something about a young sailor. his name Hugh ----. he is away now since 4 or 5 years. i hope gentlemen you will let me no if he is dead or alive as i am anxious to no as it is a deal of trouble on my mind as he is a Boy that i have reared up without father an mother an he a deal of trouble on my mind. he has a dark eyes an Brown hair, looking pael. please gentlemen to let me no if you can by return." "i rite a Line two see if you hard Enny thing of my husband ---- that was left at ---- ill. pleese will you rite back by return of post as we are in great trobble." "I have just been hearing of 3 men that was drowned about 9 months ago. i hear there was one of the men went under the name of John ----. Could the manager of the office give any particulars about that man,--what he was like, or if there was such a name, or if he had any friend. He just went amissing about that time. I here enclose a stamp, and address to ----" &c. Again, the Post-office is asked to hunt up missing relatives:--