London Advertiser, of June 16th, contained the following comments. "A concert was given at Exeter Hall last evening by Miss Greenfield, the American vocalist, better known in this country under the sobriquet of the 'Black Swan.' Apart from the natural gifts with which this lady is endowed, the great musical skill which she has acquired both as a singer and an instrumentalist, are convincing arguments against the assertion so often made, that the negro race are incapable of intellectual culture of a high standard. Miss Greenfield, by birth as well as appearance, is decidedly a negress, her father having been a full African, and her mother of mixed extraction. She herself was born and brought up a slave in the United States, although freed at an early age. On the death of her mistress her vocal abilities, which were already known in a limited circle, were, by the judicious assistance of some kind-hearted friends, brought into public notice; and she was enabled to receive the necessary training and instruction. She speedily became a proficient in the art of vocalization; and, after giving a series of concerts in the United States, she felt sufficient confidence in her abilities to resolve on standing the test of an English audience. Her voice is a contralto, of great clearness and mellow tone in the upper register, and full, resonant, and powerful in the lower, though slightly masculine in its _timbre_. It is peculiarly effective in ballad songs of the pathetic cast, several of which Miss Greenfield sang last night in a very expressive manner. She was encored in two, "The Cradle Song," a simple melody by Wallace, and "Home, Sweet Home," which she gave in an exceedingly pleasing manner. The programme of the concert was bountifully drawn up; for, in addition to the attractions of the Black Swan, there was a host of first-rate artists. Herr Brandt, a German artist, with a remarkably sweet voice, sang Professor Longfellow's 'Slave's Dream,' set to very beautiful music by Hatton, in a way that elicited warm applause. Miss Rosina Bentley played a fantasia by Lutz, very brilliantly, and afterwards assisted by Miss Kate Loder, who, however, must now be known as Mrs. Henry Thompson, in a grand duet for two piano-fortes, by Osborne. M. Valadares executed a curious Indian air, "Hilli Milli Puniah," on the violin, and Mr. Henry Distin a solo on the sax tuba. The band was admirable, and performed a couple of overtures in the best manner. Altogether, the concert, which we understand was made under the distinguished patronage of the Duchess of Sutherland, was highly successful, and went off to the perfect gratification of a numerous and fashionable audience." _Words of Miss Greenfield's Grand Concert._ PART I. OVERTURE--IN C MINOR.--"PEACE AND WAR."--DUGGAN. SONG--"I ARISE FROM DREAMS OF THEE."--ALFRED MELLON. MISS URSULA BARCLAY.