Gel chromatography, 2nd edn. They should be submitted on separate sheets and numbered consecutively throughout. Each table should have a brief title and, if necessary, short explanations may be given. The same data should not be given in both tables and graphs. The figure legends should be presented together on a separate sheet.
Line drawings are preferable to photographs.
Photocopies are not suitable for reproduction. Please submit high-quality glossy prints or figures of laser printer quality in the desired final size. Inscriptions should be clearly legible. After reduction, the smallest type should be at least 2 mm high. Half-tone illustrations, if any, should be well contrasted and trimmed at right angles in the desired final size.