academician vs head of faculty

academician

noun
  • A member or follower of an academy, or society for promoting science, art, or literature, such as the French Academy, or the Royal Academy of Arts. 

  • A member (especially a senior one) of the faculty at a college or university; an academic. 

head of faculty

How often have the words academician and head of faculty occurred in a corpus of books? (source: Google Ngram Viewer )