While the vaccine discovery was progressive, the joy I felt at the prospect before me of being the instrument destined to take away from the world on….

I shall endeavour still further to prosecute this inquiry, an inquiry I trust not merely speculative, but of sufficient moment to inspire the pleasin….

The deviation of man from the state in which he was originally placed by nature seems to have proved to him a prolific source of diseases.

I hope that some day the practice of producing cowpox in human beings will spread over the world - when that day comes, there will be no more smallpo….