in the language.  The elegance of the composition is in exact proportion to the coarseness of the materials:  by “happy alchemy of mind,” the author has extracted an essence of refinement from the dregs of human life, and turns its very dross into gold.  The scenes, characters, and incidents are, in themselves, of the lowest and most disgusting kind:  but, by the sentiments and reflections which are put into the mouths of highwaymen, turnkeys, their mistresses, wives, or daughters, he has converted this motley group into a set of fine gentlemen and ladies, satirists and philosophers.  He has also effected this transformation without once violating probability, or “o’erstepping the modesty of nature.”  In fact, Gay has turned the tables on the critics; and by the assumed licence of the mock-heroic style, has enabled himself to do justice to nature, that is, to give all the force, truth, and locality of real feeling to the thoughts and expressions, without being called to the bar of false taste and affected delicacy.  The extreme beauty and feeling of the song, “Woman is like the fair flower in its lustre,” are only equalled by its characteristic propriety and naivete. Polly describes her lover going to the gallows, with the same touching simplicity, and with all the natural fondness of a young girl in her circumstances, who sees in his approaching catastrophe nothing but the misfortunes and the personal accomplishments of the object of her affections.  “I see him sweeter than the nosegay in his hand; the admiring crowd lament that so lovely a youth should come to an untimely end:—­even butchers weep, and Jack Ketch refuses his fee rather than consent to tie the fatal knot.”  The preservation of the character and costume is complete.  It has been said by a great authority—­“There is some soul of goodness in things evil":—­and the Beggar’s Opera is a good-natured but instructive comment on this text.  The poet has thrown all the gaiety and sunshine of the imagination, all the intoxication of pleasure, and the vanity of despair, round the shortlived existence of his heroes; while Peachum and Lockitt are seen in the back-ground, parcelling out their months and weeks between them.  The general view exhibited of human life is of the most subtle and abstracted kind.  The author has, with great felicity, brought out the good qualities and interesting emotions almost inseparable from the lowest conditions; and with the same penetrating glance, has detected the disguises which rank and circumstances lend to exalted vice.  Every line in this sterling comedy sparkles with wit, and is fraught with the keenest sarcasm.  The very wit, however, takes off from the offensiveness of the satire; and I have seen great statesmen, very great statesmen, heartily enjoying the joke, laughing most immoderately at the compliments paid to them as not much worse than pickpockets and cut-throats in a different line of life, and pleased, as it were,