X he variety of cross hatchings available and the use of several colors are great aids in making statistical maps. Cross hatched and colored maps are especially adaptable to the presentation of frequency distribution data. For suggestions relative to the use of gradations of cross hatchings and colors, see Chapter 44, "Suggestions for Making a Chart."

Not* Connecticut ond Motsoctiustttt lompltd by townships

WPA. Division of Social Research, 'Trends in Rrlicf Expenditures," 1037. SCALE .7

Distribution of 385 Sample Counties and Townships Represented in the Rural-Town Relief Study in the United States.

This map accompanied a very extensive study on rural-town relief. The validity of the conclusions drawn from that study may depend upon its method of sampling.

CROSSHATCHED AND COLORED MAPS

Courtesy of The Pint National Bank of Boston. Mass . August 1Q.18.

SCALE .8

A. Federal Expenditures for 1929 and 1937 Represented as Inconne of Two-Thirds of the Population of California and as Income of Thirteen States, Respectively,

1. Although federal expenditures have increased vastly since 1929, the presentation of that

information in this form distorts the facts.

2. The basis for coloring the states was according to the income of the population of those

states. Since the income in the United States is not distributed uniformly throughout the United States, an area comparison is not valid.

3. This would be a true presentation of facts only if the area of each of the states were

in uniform proportion to its wealth.

LEGEND

■ Proporuon of Municipal area lax delinQuent for one or more years