There are 2 titles associated with this firm.

@book{ wphp_3698
  author={Devis,Ellin},
  year={1789},
  title={The accidence; or, first principles of English grammar, Comprehending etymology, orthography, prosody and syntax; ... First compiled by E. Devis ... and now carefully revised, enlarged, and improved by an eminent grammarian.},
  publisher={G. Douglas},
  address={London},    }
@book{ wphp_16051
  author={Williams,Helen Maria and Mackenzie,Henry and Lewis,Matthew Gregory},
  year={1802},
  title={The History of Perourou, the Bellows-Mender. With Other Amusing and Instructive Histories.},
  publisher={G. Douglas},
  address={Baltimore},    }