When a man tells you, point blank, that he is selling an article for the profit of it, believe him; but when he asserts that he is advertising and offering a remedy solely for the public good, for the benefit of suffering humanity, he is a liar. Beware of such. Furthermore, when he publishes an advertisement in every paper in the land, announcing that himself having been miraculously or "providentially" cured of a _variety_ of diseases by a certain compound, the _prescription_ for which he will send free to any address, you should hesitate, until satisfied of the disinterestedness of the party, and meantime ask yourself the following question: "Provided this be true, why don't the unparalleled benevolent gentleman _publish the recipe_, which would cost so much less than this persistent advertising 'that he will send it to any requiring it'? And you are next led to ask,-- "Where is the 'dodge'? For money is what he is after." A reverend (?), a scoundrel, a "wolf in sheep's clothing," advertises in nearly every paper you chance to notice, especially _religious_ newspapers, a remedy he discovered while a missionary to some foreign country, that cured him of a _variety_ of diseases, the recipe for which medicine he will send to any address, _free of charge_. "Here is the '_Old Sands of Life_' dodge," I said, "which I had the satisfaction of exposing fourteen years ago." The reader may recollect the advertisement of "A Retired Physician, seventy-five years of age, whose sands of life had nearly run out," who advertised so extensively a remedy which cured his daughter, etc., which remedy he would send _free_, to the afflicted, on application. I investigated his "little fraud." I found, instead of an old man "seventy-five years of age," a young man of about twenty-eight or thirty. He was no reverend. He had no daughter. He was a tall, gaunt, profane, tobacco-chewing, foul-mouthed fellow, with a bad impediment in his speech from loss of palate, whose name _was_ Oliver Phipps Brown, a printer by trade, who formerly worked as journeyman in the _Courant_ office, Hartford, Conn. The police finally got hold of him, and broke up the swindle. [Illustration: OLD "SANDS OF LIFE."] Here is now a parallel case. The above _reverend_ says he will send the recipe free. I directed my student to write for it. The recipe came, with various articles named therein, supposed to be the Latin names of plants. I assert that there are no such medicines in the Materia Medica, or the world. The _reverend_ don't want that there should be. Why? Because you would not then send to him for his "Compound." He sends with his recipe a circular, in which he gives you the history of _his marvellous discovery_. Further along, by some oversight, he says it was made known to him through a physician!