Placement in Text

Pay careful attention to the layout of schemes and formulae, taking into account the width of the printed page. Both cramped structures and wasted space should be avoided. When reference is made subsequently to a structure already numbered, then just give the number, do not redraw the structure. 

In the submitted manuscript, formula blocks, equations, etc. should be placed in the text between paragraphs, close to their mention. However, since precise placement of formulae in the printed text is not always possible, authors should use numbering to avoid having the formulae, equations, and schemes read as part of the text. 

---