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and conquer the evil propensities of our fallen nature. “The fiesh warreth against the spirit, and the spirit against the flesh." “Abstain from fleshly lusts, which war against the soul.” "Denying ungodliness and worldly lust, we should live righteously, soberly, and godly, in this present world.” We must always gratefully remember, that it is only through the merits and mediation of our Lord Jesus Christ, that we have our hopes of salvation; and must spare no efforts to promote the cause of God upon earth, striving by our lives and conversation to glorify him. “Other foundation can no man lay, than that is laid, which is Jesus Christ.” “Go ye into all the world and preach the gospel to every creature." "Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.

I have thus attempted to give my readers a recipe for true happiness, which I am sure they may safely follow. Nor let any suppose, that though they can find no fault with the plan, theoretically, it may yet be found impracticable. This, I unhesitatingly affirm will not be the case. No one of the rules here laid down, can interfere in any way with the duties of life, which it is our bounden duty to perform. In the Scriptures no impossibilities are commanded, and we are by them required not to be slothful in business, though at the same time “fervent in spirit, serving the Lord.” Paul was a noble example of the practicability of combining the two; who, while “laboring more abundantly” than all others in the cause of his Lord and Master, at the same time worked for his daily bread with his own hands, and was chargeable to none of his willing friends. But the objection may be raised, that it is impossible to be so indifferent to temporal affairs, as to meet with composure the many vicissitudes which beset our path. I did not however, promise perfect happiness; that, I said was not to be expected; but I do promise this, that the more closely you follow the rules I have just suggested, the more you will be able to feel with the apostle, that, “the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us." Do you want an example that men have been able thus to disregard temporal trials? What situation can be imagined more appalling than that of Paul and Silas,

who, though in the anticipation of a most cruel death in the morning, yet " at midnight prayed and sang praises unto God.” May every one of you, my friends, have grace to set your affections where true joys are to be found; bearing in mind continually, that, if the ways of true wisdom be not “ways of pleasantness” to us when on earth, they would not be so in heaven. Those, who in this life, could find no happiness in heavenly pursuits, would be as wrerched in heaven as in hell itself. Nor does this idea at all preclude the possibility of repentance unto salvation, even at the latest period of life; for genuine repentance and true faith impart to the dying penitent such love to Christ, and such a taste for the joys of heaven, as would, if it had pleased God to spare that person's life, have rendered pleasant to him similar pursuits to those which he now in heaven follows.

I do not think I can do better than conclude with a few nes from the good Archbishop Tillotson, which are very much to the point in question. “Religion,” he says, "conduces both to our present and future happiness; and when the Gospel charges us with piety towards God, justice and charity towards men, and temperance and chastity in reference to ourselves, the true interpretation of these laws is, that God requires of men in order to their eternal happiness, that they should do those things which tend to their temporal welfare; or, in other words, he promises to make us happy for ever, upon condition that we do that which is best for ourselves in the world. In a word, religion is founded in the interest of men, rightly apprehended, so that if the god of this world did not blind their eyes, so as to render them unfit to discern their true interest, it would be impossible, so long as men 'love themselves and desire their own happiness, to keep them from being religious.” T. Y.

A GREAT CONQUEST. ANTIGONUS, king of Syria, during one of his campaigns, one day overheard some of his soldiers reviling him behind his tent. But instead of summoning them to appear and answer for their contumely, and exercising his authority in their punishment, he barely drew aside the curtain of his tent and said, “Gentlemen, just remove to a greater distance, for your king hears you."

THE FIRE AND THIEF DETECTOR.

THE Electric Indicator in some respects resembles the telegraph; in others it is totally dissimilar. Voltaic electricity or galvanism is the agent employed in both inventions; but in the Indicator it is so subjugated, or domesticated, that its mode of operation is in a few minutes understood by the most unscientific, and the apparatus by which it is applied can be managed by a child. One of its uses is for the preservation of life, and the protection of property; the Indicator giving instant and unerring warning of danger, whether from fire or burglary.

In some convenient part of the house, the master's bed-room, for instance, two boxes must be placed. One contains a voltaic battery, consisting of six small bottles, connected in series and fitted up on the sustaining principle; the other contains the bell and wheels, and sustains the weights of an alarum. The catch which takes into the striking wheel is connected with a lever, fixed underneath a vertical coil of wire, hollow in the direction of its axis, and containing an armature moving freely within it. The latter is sustained in its proper place by a permanent magnet. Whenever a current of electricity passes through the coil, the armature is converted into an electromagnet, and being then instantly repelled by the permanent magnet, it falls upon the end of the lever, liberates the catch, sets the weights in motion, and rings the bell.

To place the various parts of a house in immediate communication with the apparatus just described, two covered wires are laid, say, along the angles of the passages and rooms, to each of the outside doors and windows, and which are fitted up with a very simple contrivance, termed circuit-plates, and to these plates the ends of the wires are attached.

These arrangements are intended to give notice of any attempt at Burglary. Let us suppose that the doors and windows are shut, and the Indicator set for the night. So long as the guarded parts of the house are safe, everything remains

From "A Description of the Electric Indicator.” by J.O. N. Rutter, F.R.A.S., who intimates that he has been a reader of the Youths' Magazine, nearly thirtysix years. This ingenious instrument is to be had of HORNE, THORNTHWAITES and Woov, 123, Newgate-street, London.t;

quiet; but if either of the doors or windows be ever so stealthily opened, the electric circuit is completed; quicker than thought the armature falls, and an alarm is given by the ringing of the alarum-beil.

An additional wire, laid alongside of those just mentioned, and connected with thermometers of a peculiar construction, fixed in the passages, rooms, and other parts of the house, constitute the means of giving warning of the first commencement of a Fire. The battery and alarum apparatus are used for both purposes at the same time; and with the additional advantage that the fire alarm is in operation by day as well as night, without interfering with the wires of the thief department, which, for convenience, are thrown out of action during the day. The thermometers are so adjusted that any sudden rise in the temperature amounting to a difference of 8° to 10° beyond the ordinary range of the surrounding atmosphere, causes an immediate alarm to be given. Nor is this all. On the top of the box first described, a magnetized needle is fixed. This instrument forms part of the circuit between the battery and helix, for the purpose of indicating the cause of alarm; the needle pointing to the word "THIEF,” or “FIRE,” as the case

may be.

By an easy modification of the arrangements, each story of a house, any particular apartment, or a chest, closet, drawer, or article of furniture, can be guarded independently of other parts; so that, if anything be amiss, not only will the cause of alarm be shown, but the exact locality whence it proceeds will be as distinctly indicated.

If it be thought necessary, the wires can be concealed by beadings, or they may be laid behind skirtings, or mouldings, underneath the floors, or in tubes provided for the purpose; so that they never can be interfered with by accident or design; and they will in no respect injure or disfigure the walls, or other parts of a house. Once fixed, they will last, what is commonly termed, for ever. They are not liable to strain, or friction, or wear of any kind, and, consequently, no further expense will have to be incurred. The alarm within a house may be so applied as to ring a bell of any size, or at any distance outside; the descent of the alarum-weight, by the aid of very simple mechanism, being sufficient for the purpose. So also the alarm in the master's bed-room may be made to act simultaneously in the servants' or other apartments.

Where there exists an ordinary amount of prudence and forethought, to be forewarned is to be forearmed. Safety from fire, security from depredation, are conditions which, if attainable, are surely deserving of consideration. To motives, in the first instance, selfish and entirely personal, may very appropriately be added others which are purely philanthropic. To guard against danger—to prevent injury—is better than having to lament, or to mitigate, their effects. To prevent the commission of crime, is a more ennobling pursuit than contriving means for its punishment.

The attack of an assassin has often been less terrible in its results, than a fire in the dead of the night. How frequently do we hear, or read, that on the first discovery of a fire, smoke was issuing from the upper parts of the premises; that, before assistance could be obtained, flames had burst through the windows; that with great difficulty the inmates were awakened and rescued, or, that all attempts to arouse some parts of the household having proved unavailing, they had perished amidst the destruction which had thus come upon their home. To prevent the beginnings of these much-dreaded visitations, and to avert the calamities which are too often associated with them, is certainly worth an effort.

It should be remembered, that when a fire breaks out in a house, after the family have gone to bed, the wonder is greater that any of the members awake spontaneously, and become sensible of their danger, than that they sleep the more soundly, and require to be aroused by strangers. The smoke and vapour emitted by a smouldering fire are soon diffused, by the upward tendency of rarified air, among the bed-rooms, and are more likely to stupefy than awaken. When the burning materials are perfectly ignited, the danger is greater; the fire advancing more rapidly, the air becoming more quickly heated, and carbonic acid and other gaseous products of combustion being of themselves sufficient to destroy life.

Turn we now to the "thief" alarm, and of which little more need to be said. The usual means of ingress, by doors and

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