If they must be used, identify by superscript numbers and type together on a separate page, double-spaced. Figures should be in a finished form suitable for publication. Number figures consecutively with Arabic numerals, and indicate the top and the authors on the back of each figure. Lettering on drawings should be of professional quality or generated by high-resolution computer graphics and must be large enough to withstand appropriate reduction for publication. Supply a descriptive legend for each figure.
Type legends double-spaced consecutively on a separate page.
Illustrations in color in most cases can be accepted only if the authors defray the cost. At the Editor's discretion a limited number of color figures each year of special interest will be published at no cost to the author. To minimize the costs to the author, multiple color figures may appear out of numerical sequence. Mounted color figures must be submitted on paper or flexible board due to the nature of the reproduction process. Number tables consecutively with Roman numerals in order of appearance in the text.