_Tuesday, April 22._--Mr. BENNETT'S Libretto of _Thorgrim_ good from literary point of view; poor from dramatic ditto. Composer COWEN not possessing dramatic power sufficient for two, cannot supply the want. Sestett and Chorus, end of Act II., skilfully worked up, and received with acclamation. Opera, in a general way, Wagnerish. Orchestration shows the hand of a master, Master COWEN. Local colour good, but too much local colour spoils the Opera. Mr. McGUCKIN is _Thorgrim_ to the life; singing, acting, and make-up admirable. Miss ZELIE DE LUSSAN highly commendable. Miss TREMELLI, mother of _Helgi_ (an ugly name and scarcely mentionable to ears polite), loud and leading as a lady-villain. _Helgi_ and _Arnora_ are first cousins (not once removed) to _Telrammond_ the Tedious and _Ortrude_ the Orful. Mr. CELLI as _King_, a sort of Scandinavian BEAU BRUMMEL, imparts light comedy touch to Opera, which, but for this, might have been a trifle dull. COWEN called, came, congratulated. H. R. H. Prince of WALES, setting the best example, as he always does, to Opera-goers, came at the beginning and remained to the end. _April 23._--_Maritana_ delighted everyone. Miss GEORGINA BURNS splendid. Mr. JOHN CHILD, as _Caesar_, good child. Mr. LESLIE CROTTY good for _Jose_. _April 26._--_Lohengrin._ _King_ played by POPE with considerable amount of temporal power. F. DAVIES good as the _Herald_, but which _Herald_ he is, whether the "Family" or "New York" not quite clear. Incidental music by amateurs in the Gallery, who, in lengthy interval between Second and Third Scenes of Last Act, whistled "_We won't go home till morning!_" Carl Rosa Opera season soon over, then Drama at Drury Lane, and Italian Opera at Covent Garden. AUGUSTUS DRURIOLANUS OPERATICUS COUNTICOUNCILLARIUS (Sheriff _in posse_, Alderman _in futuro_, and Lord Mayor _in futurissimo_) keeps the ball a rolling at both Houses. * * * * * [Illustration: STRICTLY PRIVATE VIEW, ROYAL ACADEMY.] * * * * * IN THE KNOW. (_By Mr. Punch's Own Prophet._)