"But this sort of thing is becoming too prevalent," as a worthy magistrate was in the habit of remarking, when about to sentence some pick-pocket or disturber of the peace; and if the devices of the class of villains referred to continue to increase as they have done for years past, semi-annual sessions of the legislative branch of Government will scarcely suffice for the enactment of penalties to meet the increasing exigencies of the case.

There is no end to the gross swindles of this description now perpetrated or attempted, and requiring the utmost care and watchfulness on the part of the public to avoid being deceived by them. No class nor condition in society is exempt from these wiles; the most intelligent and shrewd being victimized quite as often as the credulous and inexperienced.

Lawyers, clergymen, editors, farmers, and even post masters, have all in turn been swindled by means of facilities afforded by the post-office system, the frauds ranging in magnitude and importance, from imaginary papers of onion seed, to "calls" for ministerial aid in the momentous work of converting "a world lying in wickedness!"

It is with a view to put those who may peruse these pages on their guard, that a few rare specimens of the tricks of these "Jeremy Diddlers" are here exposed, most of which have come to light within a few months of this present writing.

The first that we will describe, was perpetrated quite successfully upon the legal fraternity, and some of the most distinguished members of that highly useful profession in the different States, will no doubt readily recognise the truthfulness of the picture, as it is held up to their gaze. This "dodge" may properly be entitled

YOUNG AMERICA PRACTISING AT THE BAR.

In January of the present year, the post master of Brooklyn. N. Y., called my attention to the fact that large numbers of letters were arriving at that office to the address of "William H. Jolliet," and that from some information he had received, he was led to believe that the correspondence was in some way connected with a systematic scheme of fraud.

Arrangements were accordingly made to watch the person who was in the habit of inquiring for the "Jolliet" letters, and the next time he called, which was in the evening, he was followed as far as the Fulton ferry, detained just as he was about to enter the ferry-boat, and questioned in reference to the letters.

The person thus interrogated was an exceedingly intelligent boy, about fifteen years of age, plainly but neatly dressed, and of prepossessing manners, particularly for one so young. When asked what he intended to do with the letters he had just taken from the post-office, he manifested great self-possession, and apparently anticipating trouble, without allowing an opportunity for a second question, he hurriedly asked.

"Why, what about this business? I have been thinking there might be something wrong about Jolliet's letters. I am a student in a respectable law-office in New York, and would not like to be involved in any trouble of this sort. I can tell you, sir, all I know about these letters."