In Van Amburgh’s Zoological & Equestrian Co. Concert Company. Fun for the million! (Philadelphia, 1859), detail., Mlle. Fredericks worked with Van Amburgh in 1859 only; cf. W.L. Slout. Olympians of the sawdust circle (1998)., Full-length portrait of the slack wire performer, holding a hoop as she balances on the wire.
