In every literary or dramatic romance, you will observe that from the time that the villain is unmasked he is innocuous. It is the undiscovered villain who is formidable. So it has been in this wonderful romance of medicine. All this work of late years has been in the direction of exposing the villain. When once this is done, be he micrococcus or microbe, and be his accomplice a mosquito or a rat-flea, the forces of law and order can be turned upon him and he can be broken in to that human system which he has so long defied.
