Mis William K. Vanderb'lt wore a royal ciown to the opera on Fiiday evening, s,iys a lecent issue of the Woild. Her appearance as a right down regular royal queen, instead nieiely of a society queen, attracted immediate attention, and started a buzz of comment. 'I he crown was a real unruistakeable crown, not a tiara l>y any means, and is, according to her friends, made in exact duplicate of the British crown. Mrs Ogden Mills and Mis Pr Reward Webb also have crown c , and they have worn them at the opera duiiug the past week, but they did not clic't the unstinted and unqualified admiration commanded by \'is Vauderbilt's queenly showing. Vis Vaudeihilt has, indeed, , two crowns. ') ho one made in imitation oi Queen Victoiia's ciown was got up after some patriotic hesitation by a London jeweller. 1 he other one is the crown of a German Princess, pur chased from the one time regal and legal owner by Mrs Vanderbilt hei self. • he purchaser has every necessary guarantee of its genuineness. he does not wear it regularly, because the Princess w.is somewhat obscure, and the crown does not fit her us well as the i'ritieh crown does. Jt is very well in its way though, and she keeps it in le&erve. 'Ihe crown that \<rs Vanderbilt has worn at the opera, and which bhe h,is previously worn at some society affairs is a gloiious arrange ment in peails and diamonds, using in a stately and picturesque fashion from the head. It would make half a do^en tiaras, and it ia said to have cost 300,000dols. 'I he design is very graceful. I he suggestion has been made that if England should become a Kepubhc in a few years it might go out of f-tyle. Mrs Vanderbilt has treated this frivolous criticism with the con'empt it deserves. She answered quite sensibly that she had no fear of ihe fashion in ciowns changing, and that if they did she could easily have her own ciown made over. Natura'ly she did not believe in re-made and re airanged French bonnets, but if the question came up of mending an English ciown it might be done with dignity and propriety. The crowns worn by Mrs Sewaid Wwbb and Mrs Ogden Vills are not so costly as Mrs Vanderbilt's ciown is. 