Most of the histories of the West are obsessed with the shoot-em-ups. But what about the patch-em-ups? Who had to deal with all that famous carnage? With all the bloodletting depicted by pop culture historians, it almost seems a miracle anyone survived to settle the West. Prior to World War II regular, or allopathic, physicians trained in mainstream medicine were often outnumbered by alternative practitioners--folk curers, herbalists, faith healers,...