Manuscripts must contain an abstract of 250 words or less which must be double spaced. The body of the manuscript must contain at least 3 typed, double spaced pages. Full citations in the references are required for publication. Authors are encouraged to include a Table or Figure to better describe their data. One manuscript page of text may be substituted for a Table or Figure. Submission of a manuscript will constitute expression of the author’s commitment to defray the cost of publication. A publication charge of U.S. $99.95 per manuscript page will be invoiced at the page proof stage of publication of accepted manuscripts. Please note that there are no charges incurred for the Abstract, title page, or correspondence information. Also, each Table or illustration must be counted as one manuscript page due to the increased production time needed for this material. Extra charges are applied for publication of color graphics.