feline vs in chambers

feline

adj
  • Of or pertaining to cats. 

  • catlike (resembling a cat); sleek, graceful, inscrutable, sensual, and/or cunning. 

noun
  • A cat; member of the cat family Felidae. 

  • Any member of Felinae, one of the two extant subdivisions of Felidae. 

in chambers

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