There are 6 titles associated with this firm.

@book{ wphp_17419
  author={English,Clara},
  year={1818},
  title={The history of the children in the wood. An affecting tale, by Clarra English. Stereotype edition.},
  publisher={Robert P. Desilver},
  address={Philadelphia},    }
@book{ wphp_17230
  author={Edgeworth,Maria},
  year={1823},
  title={Early Lessons, in Six Volumes, by Maria Edgeworth.},
  publisher={Robert P. Desilver},
  address={Philadelphia},    }
@book{ wphp_17228
  author={Edgeworth,Maria},
  year={1824},
  title={Early Lessons, in Six Volumes, by Maria Edgeworth.},
  publisher={Robert P. Desilver},
  address={Philadelphia},    }
@book{ wphp_17320
  author={Edgeworth,Maria},
  year={1826},
  title={Rosamond: a Sequel to Early Lessons. By Maria Edgeworth.},
  publisher={Robert P. Desilver},
  address={Philadelphia},    }
@book{ wphp_17229
  author={Edgeworth,Maria},
  year={1827},
  title={Early Lessons, in Six Volumes, by Maria Edgeworth.},
  publisher={Robert P. Desilver},
  address={Philadelphia},    }
@book{ wphp_16591
  author={Botsford,Margaret},
  year={1829},
  title={Viola; heiress of St. Valverde. An original romance. : To which is annexed a variety of original poetical pieces. By Mrs. Botsford. Authoress of Adelaide, Western Elysium, and Modern Piety. Second Edition.},
  publisher={Robert P. Desilver \& },
  address={Philadelphia},    }