Hardly have our nerves ceased to vibrate, and our hearts to leap in consequence of perhaps a series of electrical strokes of irresistible effect and beauty, when our patience is put to trial by some defect, or our feelings left to grow cold and languid for want of an appropriate continuous excitement. To walk step by step with him through those alternations, and to decide in circumstantial detail upon this gentleman’s title to critical applause, would require a minuteness of description incompatible with the scheme of this publication; yet, since the high rank which he very deservedly holds in his profession renders it important that just opinions should be formed upon the subject of his performances, and that his merits should be as closely as possible canvassed, and as precisely ascertained, it would be inconsistent with the duty of a public critic wholly to decline the task, however difficult and laborious he may find it. We have now before us a criticism upon Mr. Cooper which once appeared in a periodical publication at Charleston S. C. and in which I find the following passage. “Nature husbands her gifts so carefully that where equality appears in all the parts of any object, supreme excellence is rarely seen; where great beauties are found, they are generally mixed with some considerable alloy. Of all the actors we have ever seen, Mr. Mossop was the one whom Mr. Cooper, in this respect, most resembles. With him, when it was not a blaze, it was a cloud. No man, not Garrick himself ever equalled his beauties; but his defects were great. The beauties, however, were so far superior in numbers to the defects, and in quality, to the excellencies of all other men, that he obtained from the greatest critic of that day, the tide of the _Tragedy Sheet Anchor_.” All this is strictly true; but there is this difference between that great actor and Mr. Cooper, Mossop never committed a fault from negligence; studiously, I might almost say superstitiously, devoted to the cultivation of his professional talents, he left nothing undone which industry could accomplish, and whenever he went wrong, failed from an almost pedantic desire to do too much--from a stiffness and stateliness of deportment, and an embarrassment of which he had begun to get rid but a few years before his death. Mr. Cooper labours under no obstruction of this kind.