Observations on febrile contagion
Subtitle: and on the means of improving the medical police of the city of New York
By: Delivered as an introductory discourse, in the hall of the College of Physicians and Surgeons, on the sixth of November, 1820. By David Hosack
Contributors: Bayley, Joseph; Beck, John B. (John Brodhead), 1794-1851
Publisher: Published by Elam Bliss, no. 208 Broadway. J. Seymour, printer
Published: 1820
Place of publication: New York
Language: eng
Number of pages: 79
Subjects: Communicable diseases; Yellow fever; Sanitation; Communicable Diseases; Yellow Fever; Sanitary affairs
Notes: Half title: A discourse on the medical police of the city of New-York.

Appendices A-E (p. 53-79) include: A. "Dr. Beck's communications [to the New York Board of Health, July 8 and 17, 1820] concerning the yellow fever at Middletown, Con. [sic]" - C. "Communication [to D. Hosack] from Dr. Joseph Bayley, health officer of the Port of New-York."