The Adelphi closed at the end of last week ;
the Princess's closed last Wednesday ; the Olympic ended its season last night, though it remains open one evening more for the benefit of Mr. Emden, the acting manager. The original successful pieces (not being burlesques) that have been brought out at all these three houses since last October amount to the formidable sum of—two. The rest of the stock has been entirely from France. By August 1855, we suppose that in the matter of originality we shall have arrived at a respectable zero. Enthusiasts, however, see hopes in the Marylebone.