apothecary vs pharmacologist

apothecary

noun
  • Synonym of pharmacy: an apothecary's shop, a drugstore. 

  • A glass jar of the sort once used for storing medicine. 

pharmacologist

noun
  • A student of pharmacology; one versed in the science of pharmacology. 

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