THL: I'RKSKNT BOSTON LIGHT 

 r.uilt in 1783 by Massaclnisetts and ceded to the United States in 1790 (see page 7) 



SANDY HOOK l.IGHTHOLSK, NKW YORK 



This and Cape Henlopen lighthouse, both built in 1764, are the oldest existing lighthoust. 

 towers in this country. The walls at the base are 7 feet thick 



