There are 2 titles associated with this firm.

@book{ wphp_2070
  author={Fisher Slack,Ann},
  year={1795},
  title={A practical new grammar, with exercises of bad English: or, an easy guide to speaking and writing the English language properly and correctly. Containing, I. Orthography; or True Spelling, which treats of the Sounds and Uses of the several Letters in all Positions; of the Division of Words into Syllables, and the Use of Points. II. Prosody; or the Art of Pronouncing Syllables in Words truly, with Tables of Words properly accented. III. Etymology; or the Kinds of Words, which explains the several Parts of Speech; their Derivations and different Endings; Change and Likeness to one another. IV. Syntax; or Construction, which teaches how to connect Words aright in a Sentence, or Sentences together. To which is added, a Curious and Useful appendix. The fifteenth edition, Enlarged and much Improved. By A. Fisher.},
  publisher={George, George, and John Robinson \& Thomas Slack [Groat Street] \& },
  address={London},    }
@book{ wphp_9347
  author={Pickering,Ellen},
  year={1826},
  title={The Marriage of the Favourite; or, She Bred Him a Soldier. A Novel. By the author of "The Heiress." In three volumes.},
  publisher={George B. Whittaker \& },
  address={London},    }