Give each column a short or abbreviated heading. Place explanatory matter in footnotes to the table, not in the heading. Explain in the footnotes all non-standard abbreviations used in the table. If data from another published or unpublished source are used, obtain permission and acknowledge fully. A table shall as far as possible be self-explanatory and understandable without reference to the text of the article.
All illustrations are to be considered figures.
Figures should be submitted in triplicate and numbered consecutively with arabic numerals. Letters, numbers, and symbols must be clear, in proportion to each other, and large enough to be legible when reduced for publication. Photographs should be submitted as near to their printed size as possible. If magnification is significant, indicate it by a bar on the print, not by a magnification factor in the figure legend. Line drawings should be drawn in Indian ink two or three times larger than they will be when they appear in print.