http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
in the summer of 1808; also, Some account of the islands of the Azores
Variously attributed to S. L. Mitchill, Joseph Caldwell (Cushing, Anonyms, 1889, page 677) and to T. Caldwell. Cf. Sabin, Bibliotheca Americana, number 9917. The authorship of John Caldwell is affirmed by David B. Warden in his A statistical, political, and historical account of the United States of North America, 1819, volume 2, page 227.