Figures and Tables: Figures, not larger than 8 in. x 10 in., should be professional in appearance and have clean, crisp lines. Hand drawings and hand lettering are not acceptable. Submit one print of each figure and include photocopies in each copy of the manuscript. Identify each figure by marking lightly on the back or on a gummed label affixed to the back, indicating figure number, author’s name, top side, and abbreviated title of manuscript. Tables should be double-spaced on separate sheets and include a brief title. However, authors are encouraged to submit illustrations rather than tables. When tabular material is necessary, the information should not duplicate that in the text.