There are 9 titles associated with this firm.

@book{ wphp_9410
  author={Robertson,Mrs.},
  year={1829},
  title={Florence: or The Aspirant. A Novel, in three volumes.},
  publisher={Whittaker, Treacher, and Arnot \& },
  address={London},    }
@book{ wphp_81
  author={Bryan,Mary},
  year={1829},
  title={Longhollow; A Country Tale. By Mrs. Bryan Bedingfield. In three volumes.},
  publisher={Whittaker, Treacher, and Arnot \& },
  address={London},    }
@book{ wphp_10420
  author={Hatfield,Sibella Elizabeth},
  year={1831},
  title={Fruits of Solitude, or, Prose and Poetic Compositions; Consisting of Sketches of Natural and Moral Scenery; Tales, Essays, Meditations, &c. &c. By Sibella Elizabeth Hatfield, Authoress of the "Wanderer of Scandinavian," and "Moments of Loneliness." Dedicated, by most kind Permission, to Lieutenant-General Sir R. T. Wilson, &c. &c. &c.},
  publisher={Longman, Rees, Orme, Brown, and Green \& Whittaker, Treacher, and Arnot \& Edward Nettleton [Whimple Street] \& },
  address={London},    }
@book{ wphp_12998
  author={Curling,Mary Ann},
  year={1831},
  title={Poetical Pieces . . . With Some Additional Pieces. By M. A. Curling.},
  publisher={Whittaker, Treacher, and Arnot},
  address={London},    }
@book{ wphp_11772
  author={Coutier,Louisa H. R.},
  year={1832},
  title={Hours of Reverie: Or, the Musings of a Solitaire. By Louisa H. R. Coutier, Authoress of La Montagne de St. Lié.},
  publisher={Whittaker, Treacher, and Arnot \& },
  address={London},    }
@book{ wphp_9434
  author={Edgeworth,Maria},
  year={1832},
  title={Tales And Novels by Maria Edgeworth. In Eighteen Volumes.},
  publisher={Joseph Booker \& W. Simpkin and R. Marshall \& John Murray II [Albemarle] \& A. K. Newman and Co. \& George Smith, Alexander Elder and Co. \& E. Hodgson \& Baldwin and C. Cradock \& Frances Houlston and Son [Wellington] \& Whittaker, Treacher, and Arnot \& J. Bain \& R. Mackie \& Renshaw and Rush \& G. and J. Robinson [Liverpool] \& Thomas Tegg [73 Cheapside] \& John Templeman [1830-9] \& },
  address={London},    }
@book{ wphp_10425
  author={},
  year={1832},
  title={The Parent's Poetical Anthology: Being a Selection of English Poems Primarily Designed to Assist in Forming the Taste and the Sentiments of Young Readers. Third edition with additions.},
  publisher={W. Simpkin and R. Marshall \& Longman, Rees, Orme, Brown, and Green \& John Richardson [Royal Exchange] \& Baldwin and C. Cradock \& Whittaker, Treacher, and Arnot \& John, George, and Francis Rivington \& John Souter [St. Paul's Churchyard] \& },
  address={London},    }
@book{ wphp_660
  author={Shelley,Mary Wollstonecraft and Chorley,John Rutter and Smyth,Amelia Gillespie and Hemans,Felicia and Howitt,William and Roscoe,Thomas and Harrison,W. H and Howitt,Mary and Norton,Andrew and Coleridge,Hartley and Wrangham,Francis and Browne,Mary Ann and Raffles,Reverend Thomas and Deakin,H. C. and Mordacque,L. A. J. and Merritt,J. and Bowring,John and Clarke,W. G and Mark Spencer,Gent and Watts,Priscilla Maden Wiffen and Butler,Ann and Moir,Anne Montgomery and Millhouse,R. and Parry,Catherine and La Claverie,M. De and Grimaldi,Signor and Lawrence,Rose D'Aguilar},
  year={1832},
  title={The Winter's Wreath for MDCCCXXXII.},
  publisher={Whittaker, Treacher, and Arnot \& George Smith},
  address={London},    }
@book{ wphp_12490
  author={Child,Lydia Maria Francis},
  year={1833},
  title={The Western Coronal; a Collection of Pieces, Written at Various Times. ... Second edition, revised and enlarged. By Mrs. Child.},
  publisher={Thomas Oliver and George Boyd [High Street] \& Whittaker, Treacher, and Arnot \& John Reid and Co.},
  address={Glasgow},    }