At the Prince of Wales's, Mr. ARTHUR ROBERTS, as _Captain Crosstree_, is more ARTHUR ROBERTS than ever, and, consequently, immensely droll. While he is on the stage, the audience is convulsed with spasmodic laughter, excepting when he tries to forget himself and his drollery in a loyal attempt at doing justice to Messrs. SIMS' AND PETTITT's words, and to the serious business of some situation intended to be dramatic. At such moments the laughter of the House is checked, a sudden gloom comes over the faces that were but now on the broad grin, even the lineaments of Mr. ROBERTS become agonised, and the audience, like _Christopher Sly_ when bored by the Duke's players, mutter to themselves, "would t'were done." But these painful seconds, which, at the time, seem hours, are, we are glad to say, but brief and passing shadows over Mr. ROBERTS' own quaint humour which speedily reasserts itself, and, the Pettitt-and-Sims fetters being cast aside, the People's ARTHUR is himself again, and more so than ever. And, when he _is_ himself, he is simply the most absurd person that ever faced the footlights. [Illustration: _Arthur Roberts_ (_to Arthur Williams_). "The boat's getting along nicely, now we've got rid of some of the heavy cargo."] Miss NELLIE STEWART is a pretty singing, dancing, twisting, twirling _Susan_. But what induced handsome Miss MARION BURTON, once so gay and sprightly as _Cherubino_ in _Le Nozze di Figaro_, to essay this musically dreary part of _William_, and, further, to wear a costume about as unlike that of the nautical and traditional _William_ as can well be imagined, is a puzzle to anyone who knows what she _has_ done and _can_ do. Not a bit of dash in the character; all the good old conventional British Tar taken right out of it. She can indeed say with the fool in _The Yeomen of the Guard_, "I've got a song to sing, oh!" for she has two or three, but her "voice is wasted on the desert air," as they go for nothing, and therefore probably nobody else could make them go for anything. Mr. ARTHUR WILLIAMS is funny, but his Variety Show scene, with soliloquy and song, is too long; or rather, it would not be too long, if the piece were only cut down to a two hours' entertainment. [Illustration: A Mug of Burton.]