There are 9 titles associated with this firm.

@book{ wphp_11951
  author={Trimmer,Sarah},
  year={1802},
  title={The ladder to learning: a select collection of fables, consisting of words of one, two, and three syllables, with original morals. Ornamented with a great variety of engravings on wood.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }
@book{ wphp_10800
  author={Pilkington,Mary},
  year={1803},
  title={Tales of the cottage, or, Stories, moral and amusing, for young persons. By Mrs. Pilkington.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }
@book{ wphp_11830
  author={Unknown,},
  year={1805},
  title={Interesting Tales: Consisting of Isidore, Arthur, The Clear-Sighted Blind Man, Robert, and The Hogs-head. Translated from the French, by a lady.},
  publisher={John Harris [1802-1819, 1824-1843] \& Ann Vernor and Thomas Hood [Poultry] \& },
  address={London},    }
@book{ wphp_11580
  author={Palmer,Charlotte},
  year={1805},
  title={Three instructive tales for little folk: Simple and careful, Industry and sloth, and The cousins. By C. P -.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }
@book{ wphp_11581
  author={Palmer,Charlotte},
  year={1806},
  title={Three instructive tales for little folk: Simple and careful, Industry and sloth, and The cousins. By C. P -.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }
@book{ wphp_10333
  author={Marcet,Jane},
  year={1807},
  title={Conversations on chemistry: in which the elements of that science are familiarly explained and illustrated by experiments: in two volumes.},
  publisher={Longman, Hurst, Rees, and Orme \& },
  address={London},    }
@book{ wphp_11731
  author={Pilkington,Mary},
  year={1807},
  title={Tales of the cottage, or, Stories, moral and amusing, for young persons. By Mrs. Pilkington.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }
@book{ wphp_8406
  author={More,Hannah},
  year={1809},
  title={Cœlebs In Search of a Wife. Comprehending Observations on Domestic Habits and Manners, Religion and Morals. The Fourth Edition. In Two Volumes.},
  publisher={Thomas Cadell and William Davies \& },
  address={London},    }
@book{ wphp_8789
  author={More,Hannah},
  year={1809},
  title={Cœlebs in Search of a Wife. Comprehending Observations on Domestic Habits and Manners, Religion and Morals. The Sixth Edition. In Two Volumes.},
  publisher={Thomas Cadell and William Davies \& },
  address={London},    }