Run shorter quotations into the text using double quotes. Commas and periods always appear within end quotes. Use 1860s, not 1860's. Use serial commas throughout. Indicate diacritical marks clearly.
Type footnotes double - spaced on pages following the end of the text .
The first footnote, unnumbered, should include any acknowledgments and disclaimers. Abbreviate journal names in the style used by the National Library of Medicine in the Index Medicus . A second citation of the same source, if immediately following, is Ibid. Authors are solely responsible for the accuracy of citations. Ibid., p. 105.