A Letter to Sir Henry Halford, bart : 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 : 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 Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.