Near by hung a second picture. Ages have passed, no one knows how many. The brute has become Prometheus; he has learned the use of fire; and he has learned the most heroic application of flame--to touch it to himself where he is in greatest agony: that is, he has learned to cauterize his wounds. More than fire can he now handle; he has learned to bring together fat and flame; and he has discovered how from flame to produce oil; and he has learned to pour boiling oil into the holes in his body made by the implements of war. It is the long Ages of Medicine for the cautery and burning oil. A third picture hung next. More ages have passed, no one knows how many; and the scene is another battle-field far down toward modern times. It is France; it is the second half of the sixteenth century; it is warfare in Piedmont. Troops are sweeping up the hill, and in the background is a walled city with turrets and towers; and in the foreground wounded soldiers are arriving or are lying about on the ground. There is a rude mass of masonry used as an operating-table; and on the operating-table is a soldier, one of whose legs has just been amputated above the knee; an attendant holds the saw with which the leg has just been sawed off, and the stump of it has dropped below. Beside the wounded man stand two figures: one the figure of the past; and the other a figure of the future--a poor barber's apprentice, father of modern surgery, named to be massacred on St. Bartholomew's eve, but spared because none but a despised Huguenot could be found in all France skilful enough to safeguard the royal orthodox blood. There beside the soldier they stand, these two, and in them ages meet; for the figure of the past holds in his hand one of the cauteries that are kept redhot in a brazier near his feet; and the other holds in his a new thing in the world--a simple ligature. A great scene, a great epoch: the beginning of new surgery when the flowing of blood from amputations of the great arteries could be stopped by a mere bandage: that man--Ambroise Paré!