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I I I I I

WHEAT CORN OATS BARLEY ALL OTHER

Arrongement of identifying coplions

TITU

arKING(Mi)COMPAKCD WITH PALL(^a)

TITLE

^■WMCAT C3CO*N aBOATS CmSAKLIT ^AU. OTMtM

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Suggested arrangement when obove grid

KEYS

Definition; A key In the case of a curve chort I] o device for identifying curves by means of labeled "samples" of the curves ploced opart from the curves themselves.

Principle

1. Keys should be so constructed and placed as to permit ready identification of the curves.

Procedures

1. KEY WITHIN GRID. If space permits, the key should be placed within the grid (but separated from the curves so as not to intrude upon the picture).

When the key is placed within the grid if should be placed apart from the curves in such a way as not to interfere with the profjer reading of the curve values on the scale.

Scales and keys should be located in respect to each other so as not to interfere with the easy interpretation of the curves.

2. KEY OUTSIDE GRID. If the key is placed outside the grid, it may be either above or below, the choice depending upon which location permits easier reading in conjunction with the curves.

When placed above the grid, it is often feosible to incorporate the key in the main title. (See illustration at the left.)

3. ARRANGEMENT. Items in the key ore normally placed one above the other in column arrangement.