dowser vs transcendentalist

dowser

noun
  • One who uses the dowser or divining rod. A diviner. 

  • A divining rod used in searching for water, ore, etc.; a dowsing rod. 

transcendentalist

noun
  • One who believes in transcendentalism. 

  • Any of a group of philosophers who assert that true knowledge is obtained by faculties of the mind that transcend sensory experience; those who exalt intuition above empirical knowledge and ordinary mentation. Used in modern times of some post-Kantian German philosophers, and of the school of Emerson. 

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