bursar vs dispenser

bursar

noun
  • The treasurer of a university, college or school. 

  • A student funded by a bursary. 

dispenser

noun
  • Something or someone that dispenses things. 

  • A person who makes up prescriptions, such as an optician or pharmacist. 

  • An object used to dispense other items. 

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