A letter to Sir Henry Halford, bart., president of the Royal College of Physicians, proposing a method of inoculating the small-pox, which deprives it of all its danger, but preserves all its power of preventing a second attack / by R. Ferguson.

Licence: Public Domain Mark

Credit: A letter to Sir Henry Halford, bart., president of the Royal College of Physicians, proposing a method of inoculating the small-pox, which deprives it of all its danger, but preserves all its power of preventing a second attack / by R. Ferguson. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.