There are 3 titles associated with this firm.

@book{ wphp_6297
  author={Gall,Mary},
  year={1790},
  title={Moral and entertaining emblems on various subjects, in prose and verse, for the amusement of young children. By Miss Mary Gall.},
  publisher={},
  address={London},    }
@book{ wphp_6297
  author={Gall,Mary},
  year={1790},
  title={Moral and entertaining emblems on various subjects, in prose and verse, for the amusement of young children. By Miss Mary Gall.},
  publisher={},
  address={London},    }
@book{ wphp_7436
  author={Wilkinson,Sarah Scudgell},
  year={1799},
  title={Visits to the parsonage; or, the juvenile assembly. By Sarah Wilkinson, authoress of midsummer holidays, village rambles, &c. Adapted at once to amuse and instruct the youthful reader.},
  publisher={},
  address={London},    }