What is the difference between Anthropologist and Pathologist?

About 100 years, literally. In general anthropologists study bones over a century old, especially skulls, and pathologists examine remains younger that still have other tissues attached. The two professions sometimes overlap or work together such as when a relatively recent but completely skeletonized body is discovered. Most really good pathologists have also learned much about anthropology in the course of their own jobs. Another way to look at it is that pathologists determine how a recently living subject died and anthropoligists determine how historic or pre-historic subjects lived.