We may mention Mr. Thompson's name as among the first of the engravers to whom Cruikshank's designs have been entrusted; and next to him (if we may be allowed to make such arbitrary distinctions) we may place Mr. Williams; and the reader is not possibly aware of the immense difficulties to be overcome in the rendering of these little sketches, which, traced by the designer in a few hours, require weeks' labor from the engraver. Mr. Cruikshank has not been educated in the regular schools of drawing (very luckily for him, as we think), and consequently has had to make a manner for himself, which is quite unlike that of any other draftsman. There is nothing in the least mechanical about it; to produce his particular effects he uses his own particular lines, which are queer, free, fantastical, and must be followed in all their infinite twists and vagaries by the careful tool of the engraver. Those three lovely heads, for instance, imagined out of the rinds of lemons, are worth examining, not so much for the jovial humor and wonderful variety of feature exhibited in these darling countenances as for the engraver's part of the work. See the infinite delicate cross-lines and hatchings which he is obliged to render; let him go, not a hair's breadth, but the hundredth part of a hair's breadth, beyond the given line, and the FEELING of it is ruined. He receives these little dots and specks, and fantastical quirks of the pencil, and cuts away with a little knife round each, not too much nor too little. Antonio's pound of flesh did not puzzle the Jew so much; and so well does the engraver succeed at last, that we never remember to have met with a single artist who did not vow that the wood-cutter had utterly ruined his design. Of Messrs. Thompson and Williams we have spoken as the first engravers in point of rank; however, the regulations of professional precedence are certainly very difficult, and the rest of their brethren we shall not endeavor to class. Why should the artists who executed the cuts of the admirable "Three Courses" yield the pas to any one?