books.google.comhttp://books.google.com/books/about/A_Memorial_Containing_Travels_Through_Li.html?id=EkTM9Kn9F4IC&q=%22into+the+constitution%22&utm_source=gb-gplus-shareA Memorial Containing Travels Through Life Or Sundry Incidents in the Life of Dr. Benjamin Rush, Born Dec. 24, 1745 (old Style) Died April 19, 1813
