Will be Given by M'lle. Herminie Séron, at the Assembly Buildings, Saturday April, 27th 1850., at 12 O'clock, M. ... The Piano Used for this Occasion is from the Manufactory Or [sic] Mr. J.H. Shomacker Family and Single Tickets May be Had at Mr. Fiot's, and at Mr. Walker's Music Store; Also at the Residence of Mr. Seron, No. 196 Locust Street, Above 13th