iira®^'^ 



IN COMMEMORATION OF 



DOCTOR CASPAR IXTISTAR, 



LATE PRESIDENT OF THE AMERICAN PHILOSOPHICAL SOCIETY 

 HELD AT PHILADELPHIA. 



BY THE HON. WILLIAM TILGHMAN, 



CHIEF JUSTICE OF THE SUPREME COURT OF PENNSYLVANIA, 



AND ONE OF THE VICE-PRESIDENTS OF THE 



AMERICAN PHILOSOPHICAL SOCIETY- 



1818. 



10 



