All references must be double-spaced. All authors must be listed in references. Manuscripts will not be sent to referees until this requirement is met. Cite references in numerical order according to first mention in text. Ensure accuracy in spelling and details of publication.
Authors are responsible for the cost of printing color illustrations.
Four sets of artwork must be prepared using professional standards and submitted unmounted if photomicrographs, color, or halftones are used. For line drawings, high quality laser prints are acceptable. Note that computer-generated laser prints also reproduce better if printed on glossy computer paper. Letters and locants must be uniform in size and style. Flaws will not be corrected.