Heavy shading or stippling may appear black on reproduction. All labelling should be printed. Ensure that the size of lettering is in proportion with the overall dimensions of the drawing. If submitting line drawings which require reduction, please check that the lettering will be clearly legible after the drawing has been reduced to the size at which it will be printed. After reduction, letters should not be smaller than 1.5 mm in height.
Figure legends .
These should be on a separate, numbered manuscript sheet. Define all symbols and abbreviations used in the figure. Common abbreviations and others in the preceding text should not be redefined in the legend. Follow Chemical Abstracts and its indexes for chemical names. For bacterial genetics nomenclature follow Demerec et al.