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Relation of elements of curve design to plotted points

irriES

1. The main title should undertake to give the reader a quick understanding of what the chart is about.

2. Titles should be so worded as to be readily understood and so executed as to be pleasing to the eye.

3. Material serving to complete or supplement the main title should be placed in a sub-title.

NOTES

1. Explanatory notes should be included when they ore necessary to a clear and accurate understanding of the chart.

2. The content of a note should anticipate questions which might arise in reoding a chart.

REFERENCE SYMBOLS

1. The purpose of a reference symbol is to assist in associating a particular part of the chart with a reference note.

2. Reference symbols should be so constructed that they will stand out clearly from the material to which they ore related, and be distinguishable from one another.

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Suggested reference symbols

GRAPHIC PRESENTATION

INCLUSION OF DATA

Supplementary dota Inserted the grid

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Actual figures for points of speclol Interest

Note: In chart prepcrotion It must be borr>e in mind that many people ot% noi fully "grophic minded" end would prefer the focts in tobular form. Moreover, there ore many occasions when supplementary figures will improve the value of o chart for everyone; and often the effectiveness of the presentation itself can be enhanced by the proper use of figures.