alchemy vs chemistry

alchemy

noun
  • The premodern and early modern study of physical changes, particularly in Europe, Arabia, and China and chiefly in pursuit of an elixir of immortality, a universal panacea, and/or a philosopher's stone able to transmute base metals into gold, eventually developing into chemistry. 

  • Any elaborate transformation process or algorithm. 

  • The causing of any sort of mysterious sudden transmutation. 

chemistry

noun
  • An application of chemical theory and method to a particular substance. 

  • The chemical properties and reactions of a particular organism, environment etc. 

  • The branch of natural science that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alterations in the constitution of their molecules. 

  • The mutual attraction between two people; rapport. 

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