GILES'S ORATION BEFORE THE NATCHEZ FENCIBLES.--A thin, brief pamphlet lies before us, containing an oration delivered at Natchez, (Miss.,) on the fourth of July last, before the corps of the 'Natchez Invincibles' and other citizens, by WILLIAM MASON GILES, Esq. We regard it with favor and with dislike. Its _spirit_ is truly _American_, patriotic, in all respects unexceptionable, and most honorable to the writer. Its _style_, however, is not creditable to the writer's taste: it is in many parts of the oration stilted and inflated. There is a lack of care and revision also; but this may be attributed to the great haste and bodily disability which we are informed attended its production, and which indeed we cannot doubt; since in the brief letter which announces the yielding of the orator to the solicitations of his friends, of a copy for publication, there are at least two errors which would favor a verdict of damages in an action for assault and battery upon old Priscian. We allude to the substitution of 'will' for 'shall,' and _vice versa_. Speaking of days sacred to Liberty, the Sabbath-days of Freedom, the orator remarks: 'All nations, where freedom and knowledge have found an asylum, have had such anniversaries; days when the strife and bustle of business have ceased; when all cares being laid aside, and every energy _concentered and tuned in unison to the jubilant strain_ which should arise from hearts grateful to the past for its valor and virtue, and, nerved for the future, prepared to transmit to posterity the precious _casket_ of freedom unsullied by any _cloud_ of dishonor, and unsoiled by any _losel_ whether from domestic or foreign hands.' A style like this '_permeates_ the inmost recesses' of the realms of taste, Mr. GILES, 'allow us to say.' A common error is here forcibly alluded to by the orator: 'We are apt to talk of our release from Great Britain on the fourth of July, 1776, as a 'liberation from slavery.' We _never_ were in slavery. As men, as Anglo-Saxons, as subjects of the British empire, we, in this country, were always freemen, and never yielded our birth-right; it was the attempt to curtail our rights, to interfere with our domestic polity, and to check our career of greatness, that led to the Declaration of Independence; but the eternal and immutable truths of that sacred instrument were written upon our hearts, were embodied in the colonial charters and institutions, were the household words of the nation for generations before they were penned by a committee of Congress. Every where, for a century and more previous to the date of our Independence, in the primary assemblies of the people, in the legislative halls, in judicial tribunals, from the press, and by word of mouth, the colonists knew and proclaimed their rights; and thus Great Britain came to believe that we were determined on severing every tie which bound us to the land from whence we came. Does this look like slavery?' We commend