If space permits, include any important new quantitative date. In summarizing results, be exact, direct, and specific. There should be no more than three index number codes, the principal index code should be placed first. Hand-written Greek letters should be written fully in the margin at the first place of mention. Authors who have access to italic and boldface should use these to identify physical or mathematical variables.
Variables are to be set in normal italic, vectors in boldface.
Physical constants such as the speed of light or the Boltzmann constant are also set in normal italic. The journal abbreviations are those established by Chemical Abstracts Service and published by them in Chemical Abstracts Service Source Index. If the abbreviation cannot be determined, give the full title. Figures and stables should be consecutively numbered with Arabic numerals. The final thickness of a line in a figure usually lies within the range 0.15-0.20 mm.