Noie Eoendino 't<e scole range reduces the fluciuotion and separation of Curves When this is desirable it mov be belter accomplished by reducing the Koie dimensions i( the resulting chorl con still be made ol the desired proportions.

3. "FREAK" VALUES. Where a series contains a few widely divergent points lunless they ore really significant) it is often better not to attempt to select a scale that will include them all. Inclusion of these points will tend to depress the fluctuations of the rest of the curve.

4. DIVISION OF SCALE. It is desirable to select a scale range that is divisible into convenient scale intervals.

lal For reading SCALE VALUES it is generally well to subdivide the scale into intervals that are familiar and easy to visualize leg., 5, 10, 15, 20).

(bl For reading CURVE VALUES for purposes of interpolation or reading between the main points on the scale, it may be desirable to divide the scale into even units rather than odd, as the eye can more readily divide the space into even ports than into odd.

5. "BREAKING" AMOUNT SCALE. Although the amount scale should generally be continuous, it is sometimes permissible to omit on intermediate portion 111 when the curves on the grid ore widely seporoted and it is desired to compare them more closely, or (2| to magnify the fluctuations of the different curves which may be widely separated on the amount scale.

6. INDICATING BROKEN SCALE. When there is any break in the amount scale or any intermediate portion is omitted, the fact should be clearly indicated by some accepted convention.