Figure numbers for photographs should be placed on a white circle. Always indicate the absolute size by a scale bar with the length stated. Do not mix drawings and halftones on the same plate. Figure captions should be submitted on a separate page and placed after References. They should be concise, precise guides to the interpretation of each figure.
Digital images see disk instructions .
Tables Tables should be typed double-spaced on separate sheets. They should have a brief descriptive title and be self-explanatory. Tables should be numbered consecutively in Arabic numerals as they are mentioned in the text. No vertical rules should be used. Explanatory material and footnotes should be inserted below the table and designated with lowercase letters in the order in which they are referenced in the table.