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 We can scarcely mention a discovery of any importance whatever, that has not turned of advantage to man. Each new invention or discovery leads to another; the discoveries of electricity led to the electric telegraph; the electric telegraph led to the telephone, and evolved from this we have had the phonograph, microphone, and other great triumphs, the bare supposition of which, a few years back, would have been looked upon as the mental wanderings of a maniac, or at least, as "castles building in the air." Man has far more opportunities of aiding in the advancement of truth at the present time than he has ever had before. With the aid of the printing press and the newspapers, ideas can be exchanged between one party and another, and he who searches for the truth may find it by these means in many things; but as we have before remarked, he must not think himself infallible, but must use extreme care in drawing his conclusions; above all, he must avoid that great enemy to truth—Prejudice; let him overcome this, and he need not fear the results. Those modern outgrowths of civilization and experience, namely; Business, Commerce, Politics, and Law, are always capable of improvement and extension. We find them now, not applied to the advantages of one party and the disadvantages of another, to anything like the extent that they formerly were; for man is gradually, though surely, recognising the rights of others besides himself. And we hope, and believe, a time will come when prejudice shall be almost forgotten, and man's mind shall be free to wander through the broad paths of knowledge and enlightenment. Reviewing what we have said, we note, that a correct knowledge of truth, as we have endeavoured to show, is absolutely necessary to man's welfare; we have shown the evil results of his not exercising his intellectual faculties, by reference to his state during the Middle Ages. We have shown that it is necessary he should observe, carefully taking note of the smallest particulars, enquiring far and wide amongst parties of every