Mr Frith is an improving artist. There is humour and progress in No. 543, a scene from Goldsmith's _Good-natured Man_. _Mr Honeywood introduces the bailiffs to Miss Richland as his friends._ He must beware, however, of running into caricature in subjects of this kind. The bailiffs are perhaps a little overdone. Miss Richland has a very pretty face, but she looks more like a _soubrette_ or smart actress than a woman of fashion. Mr Frith's other picture, Sancho proving to the duchess that Don Quixote is at the bottom of the table, is well painted, and, in a technical point of view, it must be spoken of with respect. He has not been quite so successful as we should have expected in the expression of the faces,--that of the duke excepted, which is a good and thoroughly Spanish countenance, with its habitual gravity disturbed by Sancho's quaint humour and his master's manifest distress. But painting ladies is not Mr Frith's forte. His duchess is pretty, but there is a want of aristocratic distinction in her face and bearing; and as to the ladies grouped behind her chair, they are cookmaids in masquerade. Very few living artists, besides Leslie, should venture upon Sancho. We will not say that Mr Frith is not one of those few, but his delineation of the shrewd esquire, although very humorous, is rather coarse, and he has made him ragged and filthy to an unnecessary degree. The vexation and embarrassment of Don Quixote are ludicrously portrayed. Four very small, very unpretending pictures by Thomas Webster, R.A., must be sought for, but, when found, cannot fail to be admired. They are a feature, and a very charming one, of this year's Exhibition. High finish and truth to nature are their chief characteristics. Mr Webster is getting quite into the Ostade manner. His colouring, too, is admirable. No. 54 is a boy in a chimney corner, supping pottage, with an old woman knitting opposite to him. Both faces are excellent, and full of character. _A Cherry Seller_ is a perfect _bijou_--the woman weighing out the fruit; the boys, looking on with eager eyes and watering mouths; the fruit itself, with its Dutch nicety of finish:--altogether it is a most desirable picture, such as one can hardly pass, even for the twentieth time, without pausing for another view. _A Peasant's Home_ is upon the whole too gray, and perhaps the least attractive of the four; but in the _Farmhouse Kitchen_ are a couple of figures, a farmer and his dame, than which nothing can be better, either in colour or expression. Mr Webster shows great taste and judgment in adhering to a pleasing simplicity, without ever falling into quaintness or affectation. And it is a study for a young artist to observe the skill with which he throws his lights, and the transparency and absence of _paintyness_ (to borrow a term from the studio) which characterise his pictures.