If there is extensive reference to any particular data in the text, presentation of the data in tabular form is preferred. It is difficult to give general rules for the economical layout of tables but authors will find it helpful to consult recent issues of the Journal for examples.
Columns containing very few entries are wasteful of space, and better replaced by footnotes.
Column headings should be brief, as their width, rather than that of the entries beneath them, often determines the number of columns that can be accommodated. 3.5.2 Physical characteristics of compounds Data associated with particular compounds should be listed after the name of the compound concerned, following the description of its preparation, or else presented in tabular form. Appropriate formats for the citation of each are as follows. Melting point . Optical rotation .