An estimate of these charges will be given upon request. All illustrative material should be mailed flat and protected by heavy cardboard. Keep illustrations free of clips and staples. Line drawings and graphs. Original line drawings and graphs should be submitted in black ink on separate sheets of white opaque paper, although black and white glossy photographic prints are preferred.
Photocopies are unacceptable substitutes for original figures.
Computer generated line drawings or graphs are acceptable if printed on a laser printer. The number of photographs should be kept to a minimum and only black and white glossy prints should be submitted. If cropping is necessary, please indicate on a separate photocopy of the print so as not to damage the original. If authors use material from their own published work, permission must be obtained from the publisher. Formulae and Equations.