which are intended as a protection against the assaults of sin; and it is always some of these three that is first assailed and carried, before a breach has been made in the others. Still more evidently is there a meaning in the position of the sixth commandment, as the citadel of the whole. Life is protected there-love floats as the standard there, and death is the penalty of a broken law. Viewed as presenting a threefold front against the assaults of Satan, the world, and the flesh, we may observe, that besides the first table presenting a peculiarity of character on one side, the other two fronts are likewise characteristic that on the left being directed against bold and daring crime-that on the right denounces mean and hidden wickedness. Such is the structure of the Decalogue, and similar is the structure of the Lord's Prayer. I. I-Jehovah-thy God, which brought thee out of the land of Egypt, out of the house of bondage, thou shalt have no other Gods before Me. Our Father. II. Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, &c. Which art in heaven. III. Thou shalt not take the Name of the Lord thy God in vain; for the Lord will not hold him guiltless that taketh His Name in vain. Hallowed be thy Name. IV. Remember the Sabbath-day to keep it holy. Six days shalt thou labour and do all thy work; but the seventh day is the Sabbath of the Lord thy God: in it thou shalt not do any work, &c. Thy kingdom come. V. Honour thy father and thy mother, &c. VI. Thou shalt not kill. VII. Thou shalt not commit adultery. (These are the three great laws of the affections-filial, brotherly, and conjugal.) Thy will be done on earth, as it is done. in heaven. VIII. Thou shalt not steal. Give us this day our daily bread. IX. Thou shalt not bear false witness against thy neighbour. Forgive us our debts, as we forgive our debtors. X. Thou shalt not covet thy neighbour's house, thou shalt not covet thy neighbour's wife, nor his man-servant, nor his maid-servant, nor his ox, nor his ass, nor any thing that is thy neighbour's. And lead us not into temptation, but deliver us from evil. The apparent exceptions to the general correspondence of these two Divine productions are, perhaps, more instructive than all the rest. They reflect light mutually on one another, and are worthy of deep study. *The author published about fifteen years ago a fuller statement of the correspondence, to shew the light which they mutually shed upon each other, and to prove that the Lord's Prayer is the Ten Commandments turned into prayer. F. NOMENCLATURE OF THE STARS AND NEBULÆ. It is remarkable that sidereal astronomy, which, from its nature, is more susceptible of an exact nomenclature than any other science, is as yet without one. We have, indeed, Arabic and classic names given to a comparatively small number of stars; but they are quite capricious in their character, and convey not the slightest indications of the nature or position of the stars which they represent. This inconvenience is especially felt in regard to the nebulæ, and other remarkable objects in the heavens, which have no name whatever, and cannot be identified, unless we do as astronomers do—give the right ascension and north declination, with the epoch. Take, for example, a nebula in the constellation Dorado-its name at present is 5 h. 39 m. 51 sec. RA.-159° 9′ 7′′ NPD. ep. 1850; which is rather a long name when vocalised. It is true, we might refer to it more easily by calling it "No. 1838, British Association Catalogue," or "2007, La Caille," or "1038, Brisbane," or its number in any other catalogue in which it is found. But these are not its name, any more than "No. 4316, Wellpark Library" would be the name of "Zimmerman on Solitude," because it hap pened to have that number in that particular library. According to the plan now proposed, it would be |