Christian Julius Fries (nicknamed Wulf) was a German violoncellist. Self-taught violoncellist, he played in the Bergen orchestra from 1842, and at Ole Bull’s concerts. He went to Boston, Massachusetts, in 1847; in 1849 was founded [with August Fries (first violin), Gerloff (second violin), Eduard Lehmann (first viola, flute), Oscar Greiner (second viola), and Wulf Fries (‘cello)], the Mendelssohn Quintet Club, to which he belonged for 23 years; later he was a member of the Beethoven Quintet Club. Wulf Fries also figured in the Music Fund Society, and the Harvard Musical; played in trios with Rubinstein, and took part in frequent concerts all over the New England States, and gave many lessons, even into his 70s. As a thorough musician and fine concert-‘cellist, he had a highly beneficial influence on New England concert music.