Under the term Old Time Medicine most people probably think at once of Greek medicine, since that developed in what we have called ancient history, and is farthest away from us in date. As a matter of fact, however, much more is known about Greek medical writers than those of any other period except the last century or two. Our histories of medicine discuss Greek medicine at considerable length and practically all of the great makers of medicine in subsequent generations have been influenced by the Greeks. Greek physicians whose works have come down to us seem nearer to us than the medical writers of any but the last few centuries. As a consequence we know and appreciate very well as a rule how much Greek medicine accomplished, but in our admiration for the diligent observation and breadth of view of the Greeks, we are sometimes prone to think that most of the intervening generations down to comparatively recent times made very little progress and, indeed, scarcely retained what the Greeks had done.