any danger.

In the case of this sick lady, penicillin halted the course of the disease in a single day and cured the patient in a single week. In other cases the action of penicillin may be swifter still.

And we thank God that penicillin, which not long ago was hard to obtain and dear in price, has today become cheap and within reach of every class of people; and thus the disease of pneumonia, which stood third among diseases in its danger to human life, has been utterly vanquished.