Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
NOTE: Because some pages have duplicate pagination while other pages have been removed from the original by the author, page ranges don't necessarily reflect the actual number of pages in this document. Page 580 has duplicate pagination. Pages 577-578, 581, and 597 have been removed.