The definitive work on American Indian arrow wounds suffered by U. S. troops and settlers in frontier warfare during the Western expansion of the United States. Bill eventually developed a "Forceps for the Extraction of Arrow-Heads," which he illustrated and described in Medical Record 1876, 11, 245. Digital facsimile of Bill's 1862 paper from Google Books at this link. Digital facsimile of vol. 11 of Medical Record in which Bill's follow-up note appears from Google Books at this link.