They should be comprehensible without reference to the text. Data from tables should not be repeated in the text or figures. Illustrations should be restricted to the minimum needed to clarify the text. Previously published illustrations are not usually accepted. All figures, whether photographs, graphs, or diagrams, must be mentioned in the text and labeled lightly in soft pencil on the back to show the top of the figure, the title of the paper, the author's name, and the figure number.
All figures are to numbered consecutively throughout and submitted separately.
Illustrations that are to appear together should be grouped together whenever possible. The maximum length of the layout is 236 mm, including the legend printed at its foot. Illustrations prepared in digital form must be in accordance with the technical instructions for manuscripts and illustrations in electronic form that are published in this journal. Please submit the original records. Please submit good-quality glossy prints in the desired final size.