Congress vs House of Representatives

Congress

name
  • The two legislative bodies of the United States: the House of Representatives and the Senate. 

  • A two-year session of these bodies, commencing after a Federal election and ending before the next one. 

  • A village in Ohio. 

House of Representatives

name
  • The lower house in the bicameral legislatures of several countries; also some singular legislative bodies in unicameral systems. 

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