"Med Ship Man" by Murray Leinster is a science fiction novel written in the early 1960s. The story revolves around a medical officer, Calhoun, who is dispatched to the planet Maya, tasked with conducting a health inspection for the Interstellar Medical Service. As he arrives, he discovers that the entire planet appears to be deserted, leading him to unravel a mysterious phenomenon that has caused mass panic and evacuation of its inhabitants. The narrative follows Calhoun as he investigates the sudden disappearance of the population and encounters a man named Arthur Allison, who was involved in a dubious business scheme aimed at acquiring land on Maya. Calhoun learns that the inhabitants fled due to a cattle-induction field causing discomfort and pain, used to control animals on another planet. This technology was misapplied, resulting in the exodus of the people in fear for their lives. As Calhoun and a small group work to disable the cattle fence and restore order, the events reveal themes of ethics in business, the importance of medical intervention, and the devastating consequences of technological misuse. Ultimately, the story concludes with a return to normalcy, highlighting the resilience of humanity in the face of unforeseen challenges. (This is an automatically generated summary.)