"It is a fact well known to many, that persons who have had the Cow Pox, are for ever after secure from the infection of the Small Pox."

"It is a pity that the practice of inoculation has not been more generally adopted; for if it had, many lives might have been saved."

"The cow-pox protects the human constitution from the infection of smallpox."

"The cow-pox is a mild disease, and never fatal; the small-pox is a formidable one, and often fatal. The cow-pox is not infectious; the small-pox is highly so."

"I shall not, I presume, be thought presumptuous in declaring, that the Cow Pox is the most efficacious, and the most safe, of all the methods that have been yet discovered, for eradicating the Small P…"