There are 2 titles associated with this firm.

@book{ wphp_14810
  author={Rowley,W.},
  year={1793},
  title={The causes of the great number of deaths in putrid sore throats, scarlet fevers, and yellow fever of the West-Indies and America, explained; with more successful modes of treating those alarming disorders; as practised at the St. Mary-Le-Bone infirmary. By William Rowley, M. D. member of the University of Oxford, the Royal College of Physicians in London, &c. and physician to the St. Mary-Le-Bone infirmary.},
  publisher={William Rowley \& },
  address={London},    }
@book{ wphp_15062
  author={Rowley,W.},
  year={1793},
  title={The rational practice of physic of William Rowley, M. D. Member of the University of Oxford, The Royal College of Physicians in London, and Physician to the St. Mary-Le-Bone Infirmary, &c. &c. In four volumes. ... . Containing treatises on Female, Nervous, Hysterical, Hypochondriacal, and Cancerous Diseases, Letters on Medical Vanity, the Abuse of Hemlock, &c. &c.},
  publisher={William Rowley \& },
  address={London},    }